Dorner manhunt: Investigators work to ID charred human remains

After what LAPD Chief Charlie Beck called "a bittersweet night," investigators Wednesday were in the process of identifying the human remains found in the charred cabin where fugitive ex-cop Christopher Dorner was believed to have been holed up after trading gunfire with officers, authorities said.

If the body is identified as Dorner’s, the standoff would end a weeklong manhunt for the ex-LAPD officer and Navy Reserve lieutenant suspected in a string of shootings following his firing by the Los Angeles Police Department several years ago. Four people have died in the case, allegedly at Dorner’s hands.

Beck said he would not consider the manhunt over until the body was identified as Dorner. Police remained on tactical alert and were conducting themselves as if nothing had changed in the case, officials said.

PHOTOS: Manhunt for ex-LAPD officer

The latest burst of gunfire came Tuesday after the suspect, attempting to flee law enforcement officials, fatally shot a San Bernardino County sheriff’s deputy and seriously injured another, officials said. He then barricaded himself in a wooden cabin outside Big Bear, not far from ski resorts in the snow-capped San Bernardino Mountains east of Los Angeles, according to police.

"This could have ended much better, it could have ended worse," said Beck as he drove to the hospital where the injured deputy was located. "I feel for the family of the deputy who lost his life."

The injured deputy is expected to survive but it is anticipated he will need several surgeries. The names of the two deputies have not been released.

TIMELINE: Manhunt for ex-LAPD officer

Just before 5 p.m., authorities smashed the cabin's windows, pumped in tear gas and called for the suspect to surrender, officials said. They got no response. Then, using a demolition vehicle, they tore down the cabin's walls one by one. When they reached the last wall, they heard a gunshot. Then the cabin burst into flames, officials said.

Last week, authorities said they had tracked Dorner to a wooded area near Big Bear Lake. They found his torched gray Nissan Titan with several weapons inside, the said, and the only trace of Dorner was a short trail of footprints in newly fallen snow.

According to a manifesto that officials say Dorner posted on Facebook, he felt the LAPD unjustly fired him several years ago, when a disciplinary panel determined that he lied in accusing his training officer of kicking a mentally ill man during an arrest. Beck has promised to review the case.

DOCUMENT: Read the manifesto

The manifesto vows "unconventional and asymmetrical warfare" against law enforcement officers and their families. "Self-preservation is no longer important to me. I do not fear death as I died long ago," it said.

On Tuesday morning, two maids entered a cabin in the 1200 block of Club View Drive and ran into a man who they said resembled the fugitive, a law enforcement official said. The cabin was not far from where Dorner's singed truck had been found and where police had been holding news conferences about the manhunt.

The man tied up the maids, and he took off in a purple Nissan parked near the cabin, the official said. About 12:20 p.m., one of the maids broke free and called police.

FULL COVERAGE: Sweeping manhunt for ex-cop

Nearly half an hour later, officers with the California Department of Fish and Wildlife spotted the stolen vehicle and called for backup, authorities said. The suspect turned down a side road in an attempt to elude the officers but crashed the vehicle, police said.

A short time later, authorities said, the suspect carjacked a light-colored pickup truck. Allan Laframboise said the truck belonged to his friend Rick Heltebrake, who works at a nearby Boy Scout camp.

Heltebrake was driving on Glass Road with his Dalmatian, Suni, when a hulking African American man stepped into the road, Laframboise said. Heltebrake stopped. The man told him to get out of the truck.

INTERACTIVE MAP: Searching for suspected shooter

"Can I take my dog?" Heltebrake asked, according to his friend.

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Domestic-Drone Industry Prepares for Big Battle With Regulators

For a day, a sandy-haired Virginian named Jeremy Novara was the hero of the nascent domestic drone industry.

Novara went to the microphone at a ballroom in a Ritz-Carlton outside Washington D.C. on Wednesday and did something many in his business want to do: tenaciously challenge the drone regulators at the Federal Aviation Administration to loosen restrictions on unmanned planes over the United States. Judging from the reaction he received, and from the stated intentions of the drone advocates who convened the forum, the domestic-drone industry expects to do a lot more of that in the coming months.

There’s been a lot of hype around unmanned drones becoming a fixture over U.S. airspace, both for law enforcement use and for operations by businesses as varied as farmers and filmmakers. All have big implications for traditional conceptions of privacy, as unmanned planes can loiter over people’s backyards and snap pictures for far longer than piloted aircraft. The government is anticipating that drone makers could generate a windfall of cash as drones move from a military to a civilian role: Jim Williams of the Federal Aviation Administration told the Wednesday conclave of the Association for Unmanned Vehicle Systems International (AUVSI) that the potential market for government and commercial drones could generate “nearly $90 billion dollars in economic activity” over the next decade. $90 billion.

But there’s an obstacle: the Federal Aviation Administration.

The FAA has been reluctant to grant licenses to drone makers, out of the fear that the drones — which maneuver poorly, have alarming crash rates, are spoofable, and don’t have the sensing capacity to spot approaching aircraft — will complicate and endanger U.S. airspace. (Nor has it been transparent about the licenses it grants: the Electronic Frontier Foundation had to file a Freedom of Information Act request to learn who’s operating drones in America.) A push last year by Congress and the Obama administration directing the FAA to fully integrate unmanned aircraft into American skies hasn’t been nearly enough for the drone makers: the FAA is months late in designating six test sites for drones around the country.

“When will the test site selection begin? I’m sure that’s what all of you are asking now,” Williams, the head of the FAA’s drone integration department, told the AUVSI crowd. (It’ll start at the end of the month.)

Drone makers are also frustrated by the logic of existing FAA regulations. Currently, a drone weighing under 55 pounds, flying below 400 feet within an operator’s line of sight and away from an airport is considered a model airplane, and cleared to fly without a license. That is, if it’s not engaging in any for-profit activity — sort of. “A farmer can be a modeller if they operate their aircraft as a hobby or for recreational purposes,” Williams said.

Enter Novara, a 31-year old who owns a small drone business in Falls Church, Va. called Vanilla Aircraft. “If a farmer, who hopefully is profit-minded, can fly as a hobbyist an unmanned aircraft,” Novara challenged Williams, “why can’t I, as the owner of an unmanned aircraft company, fly as a hobbyist my own unmanned aircraft over property that I own? The guidelines before this [2012 legislation] were that any commercial intent is prohibited, but–”

“I didn’t change any guidelines,” Williams interrupted. “I didn’t say that any guidelines changed. I said that if a farmer as an individual wants to operate an unmanned aircraft according to the modeling rules, they can do that. The FAA rules are very clear about for-compensation and hire. If you’re going to operate an aircraft for compensation or hire, there’s a different set of rules that apply. So, you know, I’m not gonna split hairs over whether the farmer is making a profit or not, nor are we going to go look for him, but the bottom line is the rules are the rules and we have to enforce them until they’re changed.”

“So unmanned aircraft companies can operate R&D as long as they’re within the modeling guidelines?” Novara continued. Laughter and applause broke out among the hundreds of drone enthusiasts inside the Tyson’s Corner Ritz-Carlton.

“That’s why we have experimental certificates, to allow manufacturers–”

“The farmer doesn’t need an experimental certificate,” Novara pressed, “and everyone knows the experimental certificate process is available but not actually functional.”

Williams conceded that the current FAA rules “need to change,” since they were written for manned aircraft, “and that’s why we’re working hard to get the small unmanned aircraft rule out that will help resolve these issues. Until such time, we have to enforce the rules that are in place.”

“Is everyone else clear on this?” Novara asked, to bales of laughter. Some in the crowd shouted “No!” It felt like pent-up frustrations were being taken out on Williams, to the point where Novara added, apologetically, “I’m not trying to put this on you.”

But to the crowd at AUVSI, Novara was a hero. Outside the hall as he walked by, an older man slapped him on the shoulder and laughed, “Hey, troublemaker! I need to talk to you later!”

Expect a lot more troublemaking over the coming months. And if the domestic drone industry doesn’t succeed in getting the FAA to move fast enough for it, it’s prepared to pressure Congress to kick the FAA into gear. “Every company needs to call their Congressman,” said Peter Bale, the chairman of the board of AUVSI. April 9 is the organization’s “Day on The Hill,” when the drone industry intends to put the screws to legislators and their staff.

Novara says that he’s pessimistic that the lobbying will do any good for him: he expects it to benefit the aviation giants with established drone businesses with the government instead. (Especially as they’re the ones that make the campaign contributions.) He’s sympathetic to the FAA’s commitment to aviation safety: “I’m not advocating anarchy in the skies,” he says. But Novara sees a potential for the commercial domestic drone sector to get regulated out of business before a domestic drone boom actually starts.

“If we were all smart guys, we’d be in consumer products, right?” Novara tells Danger Room. “It’s what I like doing. There’s just no money in it.”

As the domestic-drone industry gets ready to press the FAA and Congress to loosen regulations on unmanned planes in U.S. airspace, there’s something to keep in mind. The FAA’s mandate is to protect the safety of air travel — not the privacy rights of Americans.

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Phys Ed: Getting the Right Dose of Exercise

Phys Ed

Gretchen Reynolds on the science of fitness.

Fitness Tracker

Marathon, half-marathon, 10k and 5K training plans to get you race ready.

A common concern about exercise is that if you don’t do it almost every day, you won’t achieve much health benefit. But a commendable new study suggests otherwise, showing that a fairly leisurely approach to scheduling workouts may actually be more beneficial than working out almost daily.

For the new study, published this month in Exercise & Science in Sports & Medicine, researchers at the University of Alabama at Birmingham gathered 72 older, sedentary women and randomly assigned them to one of three exercise groups.

One group began lifting weights once a week and performing an endurance-style workout, like jogging or bike riding, on another day.

Another group lifted weights twice a week and jogged or rode an exercise bike twice a week.

The final group, as you may have guessed, completed three weight-lifting and three endurance sessions, or six weekly workouts.

The exercise, which was supervised by researchers, was easy at first and meant to elicit changes in both muscles and endurance. Over the course of four months, the intensity and duration gradually increased, until the women were jogging moderately for 40 minutes and lifting weights for about the same amount of time.

The researchers were hoping to find out which number of weekly workouts would be, Goldilocks-like, just right for increasing the women’s fitness and overall weekly energy expenditure.

Some previous studies had suggested that working out only once or twice a week produced few gains in fitness, while exercising vigorously almost every day sometimes led people to become less physically active, over all, than those formally exercising less. Researchers theorized that the more grueling workout schedule caused the central nervous system to respond as if people were overdoing things, sending out physiological signals that, in an unconscious internal reaction, prompted them to feel tired or lethargic and stop moving so much.

To determine if either of these possibilities held true among their volunteers, the researchers in the current study tracked the women’s blood levels of cytokines, a substance related to stress that is thought to be one of the signals the nervous system uses to determine if someone is overdoing things physically. They also measured the women’s changing aerobic capacities, muscle strength, body fat, moods and, using sophisticated calorimetry techniques, energy expenditure over the course of each week.

By the end of the four-month experiment, all of the women had gained endurance and strength and shed body fat, although weight loss was not the point of the study. The scientists had not asked the women to change their eating habits.

There were, remarkably, almost no differences in fitness gains among the groups. The women working out twice a week had become as powerful and aerobically fit as those who had worked out six times a week. There were no discernible differences in cytokine levels among the groups, either.

However, the women exercising four times per week were now expending far more energy, over all, than the women in either of the other two groups. They were burning about 225 additional calories each day, beyond what they expended while exercising, compared to their calorie burning at the start of the experiment.

The twice-a-week exercisers also were using more energy each day than they had been at first, burning almost 100 calories more daily, in addition to the calories used during workouts.

But the women who had been assigned to exercise six times per week were now expending considerably less daily energy than they had been at the experiment’s start, the equivalent of almost 200 fewer calories each day, even though they were exercising so assiduously.

“We think that the women in the twice-a-week and four-times-a-week groups felt more energized and physically capable” after several months of training than they had at the start of the study, says Gary Hunter, a U.A.B. professor who led the experiment. Based on conversations with the women, he says he thinks they began opting for stairs over escalators and walking for pleasure.

The women working out six times a week, though, reacted very differently. “They complained to us that working out six times a week took too much time,” Dr. Hunter says. They did not report feeling fatigued or physically droopy. Their bodies were not producing excessive levels of cytokines, sending invisible messages to the body to slow down.

Rather, they felt pressed for time and reacted, it seems, by making choices like driving instead of walking and impatiently avoiding the stairs.

Despite the cautionary note, those who insist on working out six times per week need not feel discouraged. As long as you consciously monitor your activity level, the findings suggest, you won’t necessarily and unconsciously wind up moving less over all.

But the more fundamental finding of this study, Dr. Hunter says, is that “less may be more,” a message that most likely resonates with far more of us. The women exercising four times a week “had the greatest overall increase in energy expenditure,” he says. But those working out only twice a week “weren’t far behind.”

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Stock Indexes End Mixed

The stock market lacked direction on Wednesday, as a slump in McDonald’s stock helped pull the Dow Jones industrial average below 14,000. Other major market indexes were marginally higher.

McDonald’s was among the biggest decliners in the Dow, losing $1.10, to $94, as investors worried that Americans were spending less on eating out after a rise in Social Security taxes at the beginning of the year. The government reported early Wednesday that spending by Americans barely grew last month.

Other fast-food companies also fell. Buffalo Wild Wings stock plunged $4.52, to $76.55, after its earnings fell short of analysts’ expectations. Burger King and Wendy’s also fell.

“Consumer spending is coming under pressure,” said Bryan Elliott, an analyst at Raymond James. “It’s the easiest way to save money; stay at home and cook.”

The Dow Jones industrial average fell 35.79 points, or 0.26 percent, to 13,982.91. The Dow is still up 6.71 percent so far this year and is just 182 points below the record close of 14,164 set on Oct. 9, 2007.

The Standard & Poor’s 500-stock index edged up 0.90 point, or 0.06 percent, to 1,520.33. The index climbed as high as 1,524.69 during the day, the highest since November 2007. It is up 6.6 percent so far this year.

The Nasdaq composite index rose 10.38 points, or 0.33 percent, to 3,196.88.

Investors sent General Electric and Comcast higher after G.E. agreed Tuesday to sell its stake in NBCUniversal to Comcast for $16.7 billion. G.E. said it would use up to $10 billion of the money to buy back its own stock. Shares of G.E. rose 81 cents, to $23.39. Comcast advanced $1.16, to $40.13.

Trading has been relatively quiet in recent days following a strong opening to the year.

“We’re cautiously optimistic on stocks,” said Colleen Supran, principal at Bingham, Osborn & Scarborough. “There is some indication that we could be continuing on this slow growth trajectory.”

Ms. Supran said investors should still be prepared for volatility in the stock market and not assume that the gains from January and so far in February will set the pattern for the rest of the year.

Strengthening the economy and creating jobs were major topics in President Obama’s State of the Union address Tuesday. Although the economy is healthier than it was four years ago, growth remains slow and unemployment high.

The government reported that spending at retail businesses and restaurants slowed last month after higher taxes cut paychecks. Retail sales growth slowed to 0.1 percent in January, from a 0.5 percent increase in December.

Among the stocks on the move, Groupon rose 28 cents, to $5.57, after the brokerage firm Sterne, Agee & Leach, raised its rating on the company to buy from neutral, citing the long-term potential for Groupon’s changing business model. The online deals company has lost almost three-quarters of its value since going public in November 2011 at $20 as revenue growth slowed.

Dean Foods, a milk producer, fell $1.69, or 9.19 percent, to $16.70, after its profit forecast fell short of Wall Street expectations.

As stocks have advanced this year, bond prices have slumped and interest rates have risen. On Wednesday, the price of the 10-year Treasury note fell 13/32, to 96 15/32, while its yield rose to 2.03 percent, from 1.98 percent late Tuesday.

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Christopher Dorner, wildlife officers got into car-to-car gun battle

Fugitive  Christopher Dorner suddenly resurfaced Tuesday afternoon, engaging in a vehicle-to-vehicle gun battle with California Department of Fish and Wildlife officers before holing up in a Big Bear-area cabin as dozens of officers homed in.

Two San Bernardino sheriff's deputies have been injured in the confrontation, sources said. The extent of their injuries was unknown.

The incidents quickly unfolded Tuesday morning after Dorner left a nearby home he had broken into days ago, a source said. He allegedly had tied up a couple inside and held them hostage.

PHOTOS: Manhunt for ex-LAPD officer

Then Dorner was allegedly spotted by state Fish and Wildlife officers in a white pickup truck, the source said. When they attempted to stop him, Dorner crashed the truck and exchanged gunfire with the officers as he fled into a vacation cabin, where he was quickly surrounded by San Bernardino County sheriff’s deputies, the source said.

The source said one deputy was wounded as Dorner fired out of the cabin and a second was injured when Dorner exited the back of the cabin, deployed a smoke grenade and opened fire again in an apparent attempt to flee. Dorner was driven back inside the cabin, the source said.

Candy Martin, owner of the 84-year-old cabin, said she turned on the news and saw her cabin surrounded by police. It appeared Dorner was in the main cabin that is on the property with six smaller cabins.

PHOTOS: Manhunt for ex-LAPD officer

Martin said she told police the cabins were supposed to be empty Monday and had no cable, phone or Internet service. There were also no firearms inside, she said.

"It's quite shocking," she said. "I mean, it's good and bad news. If it is him, I hope that they catch him and this whole horrible thing is put to rest. At the same time, who wants this happening on their property?"

Statewide alerts were issued in California and Nevada, and border authorities were alerted. The Transportation Security Administration also had issued an alert urging pilots and other aircraft operators to keep an eye out for Dorner.

The search turned to Big Bear last week after Dorner's burning truck was found on a local forest road.

At the search's height, more than 200 officers scoured the mountain, conducting cabin-by-cabin checks. It was scaled back Sunday — about 30 officers were out in the field Tuesday, the San Bernardino County Sheriff's Department said.

Dorner allegedly threatened "unconventional and asymmetrical warfare" against police in a lengthy manifesto that authorities say he posted on Facebook. The posting named dozens of potential targets, including police officers, whom Dorner allegedly threatened to attack, according to authorities.

Records state that the manifesto was discovered by authorities Wednesday, three days after the slaying of an Irvine couple: Monica Quan, a Cal State Fullerton assistant basketball coach, and her fiance, Keith Lawrence, a USC public safety officer.

Quan was the daughter of a retired LAPD captain whom Dorner allegedly blamed in part for his firing from the force in 2009.

Federal documents also provide new details on Dorner's alleged attack against officers early Thursday in Riverside County.

The first shooting was in Corona after an eyewitness reported a person matching Dorner's description at a gas station, telling an LAPD officer "who was detailed to the area to protect one of the officials whom Dorner had threatened," according to the court records.

"When the officer drove by the gas station, the suspect exited his vehicle and fired an assault rifle at the officer, hitting the officer's vehicle," according to the court records.

The LAPD later said the officer received a grazing wound. 

About 30 minutes later, Dorner opened fire on Riverside police officers "who were in the area searching for Dorner," the documents said. On that detail, the account conflicts with a statement provided to the media by Riverside police officials, who said the officers were stopped at a red light and were not looking for Dorner.

Riverside Officer Michael Crain, 34, a married father of two who served two tours in Kuwait as a rifleman in the Marines, was killed in the attack. His partner remains hospitalized, Police Chief Sergio Diaz said, and it was unclear if he would be able to return to active duty.

Dorner was charged Monday with one count of murder, with special-circumstance allegations in the killing of a peace officer and the discharge of a firearm from a vehicle, in connection with Crain's death. He faces three additional charges of attempted murder.

Riverside Dist. Atty. Paul Zellerbach said because of the special-circumstance allegations, Dorner could be eligible for the death penalty if convicted.

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Vertu's $10K Smartphone Rings With Bling

Vertu, the company that makes phones for the rich and technologically illiterate, has finally made a smartphone, the Android-powered Vertu Ti. And because it is a Vertu, the Ti is ridiculously expensive and technologically underwhelming.

You think the iPhone is pricey? The Vertu Ti starts with a $9,600 price tag. And yes, that’s the unsubsidized price*. For that kind of money, you’d expect it to transform into a jet that flies you to an island.

That’s not the case. Instead, you get a phone with 184 parts handcrafted in England — the “craftsman” who assembles your phone even signs the inside of the removable titanium back plate so you know exactly who made your overpriced, under-spec’d device.

When it comes to actual smartphone capabilities, the Ti is depressingly average. It’s running Android 4.0 Ice Cream Sandwich and has a dual-core 1.7Ghz processor. There’s also 1GB of RAM, 64GB of storage, an 8MP rear-facing camera, a 1.3MP front-facing camera, and NFC support. That’s the same performance you could get in any mid-tier Android phone on the market for about $9,400 less. One bonus: The 3.7-inch screen is made of sapphire crystal, like a fine watch, and is said to be four times stronger than the average phone’s screen. That’s good, because the last thing anyone wants is a $9,600 phone with a cracked screen.

The Vertu Ti comes in four flashy models to cater to the undoubtedly refined tastes of the people buying them: Titanium Black Leather for $9,600; Titanium Pure Black for $11,500; Titanium Black Alligator for $12,800; and Black PVD Titanium Red Gold Mixed Metals for $19,900.

Vertu Ti owners can find comfort in knowing that the company has put its phone through several stress tests. The screen can withstand a 110gm ball bearing dropped on itself. Like a rugged traveler, the phone survived “extreme temperature testing, torsional strength, tumble testing and humidity.” And should you choose a leather model, know that the material has gone through 17 — count that, 17! — tests to “prove its robustness.”

Now all you need to do is bedazzle it with 2-carat diamonds.

*Not that any carrier would dream of subsidizing this phone.

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Well: Straining to Hear and Fend Off Dementia

At a party the other night, a fund-raiser for a literary magazine, I found myself in conversation with a well-known author whose work I greatly admire. I use the term “conversation” loosely. I couldn’t hear a word he said. But worse, the effort I was making to hear was using up so much brain power that I completely forgot the titles of his books.

A senior moment? Maybe. (I’m 65.) But for me, it’s complicated by the fact that I have severe hearing loss, only somewhat eased by a hearing aid and cochlear implant.

Dr. Frank Lin, an otolaryngologist and epidemiologist at Johns Hopkins School of Medicine, describes this phenomenon as “cognitive load.” Cognitive overload is the way it feels. Essentially, the brain is so preoccupied with translating the sounds into words that it seems to have no processing power left to search through the storerooms of memory for a response.

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Katherine Bouton speaks about her own experience with hearing loss.

A transcript of this interview can be found here.

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Over the past few years, Dr. Lin has delivered unwelcome news to those of us with hearing loss. His work looks “at the interface of hearing loss, gerontology and public health,” as he writes on his Web site. The most significant issue is the relation between hearing loss and dementia.

In a 2011 paper in The Archives of Neurology, Dr. Lin and colleagues found a strong association between the two. The researchers looked at 639 subjects, ranging in age at the beginning of the study from 36 to 90 (with the majority between 60 and 80). The subjects were part of the Baltimore Longitudinal Study of Aging. None had cognitive impairment at the beginning of the study, which followed subjects for 18 years; some had hearing loss.

“Compared to individuals with normal hearing, those individuals with a mild, moderate, and severe hearing loss, respectively, had a 2-, 3- and 5-fold increased risk of developing dementia over the course of the study,” Dr. Lin wrote in an e-mail summarizing the results. The worse the hearing loss, the greater the risk of developing dementia. The correlation remained true even when age, diabetes and hypertension — other conditions associated with dementia — were ruled out.

In an interview, Dr. Lin discussed some possible explanations for the association. The first is social isolation, which may come with hearing loss, a known risk factor for dementia. Another possibility is cognitive load, and a third is some pathological process that causes both hearing loss and dementia.

In a study last month, Dr. Lin and colleagues looked at 1,984 older adults beginning in 1997-8, again using a well-established database. Their findings reinforced those of the 2011 study, but also found that those with hearing loss had a “30 to 40 percent faster rate of loss of thinking and memory abilities” over a six-year period compared with people with normal hearing. Again, the worse the hearing loss, the worse the rate of cognitive decline.

Both studies also found, somewhat surprisingly, that hearing aids were “not significantly associated with lower risk” for cognitive impairment. But self-reporting of hearing-aid use is unreliable, and Dr. Lin’s next study will focus specifically on the way hearing aids are used: for how long, how frequently, how well they have been fitted, what kind of counseling the user received, what other technologies they used to supplement hearing-aid use.

What about the notion of a common pathological process? In a recent paper in the journal Neurology, John Gallacher and colleagues at Cardiff University suggested the possibility of a genetic or environmental factor that could be causing both hearing loss and dementia — and perhaps not in that order. In a phenomenon called reverse causation, a degenerative pathology that leads to early dementia might prove to be a cause of hearing loss.

The work of John T. Cacioppo, director of the Social Neuroscience Laboratory at the University of Chicago, also offers a clue to a pathological link. His multidisciplinary studies on isolation have shown that perceived isolation, or loneliness, is “a more important predictor of a variety of adverse health outcomes than is objective social isolation.” Those with hearing loss, who may sit through a dinner party and not hear a word, frequently experience perceived isolation.

Other research, including the Framingham Heart Study, has found an association between hearing loss and another unexpected condition: cardiovascular disease. Again, the evidence suggests a common pathological cause. Dr. David R. Friedland, a professor of otolaryngology at the Medical College of Wisconsin in Milwaukee, hypothesized in a 2009 paper delivered at a conference that low-frequency loss could be an early indication that a patient has vascular problems: the inner ear is “so sensitive to blood flow” that any vascular abnormalities “could be noted earlier here than in other parts of the body.”

A common pathological cause might help explain why hearing aids do not seem to reduce the risk of dementia. But those of us with hearing loss hope that is not the case; common sense suggests that if you don’t have to work so hard to hear, you have greater cognitive power to listen and understand — and remember. And the sense of perceived isolation, another risk for dementia, is reduced.

A critical factor may be the way hearing aids are used. A user must practice to maximize their effectiveness and they may need reprogramming by an audiologist. Additional assistive technologies like looping and FM systems may also be required. And people with progressive hearing loss may need new aids every few years.

Increasingly, people buy hearing aids online or from big-box stores like Costco, making it hard for the user to follow up. In the first year I had hearing aids, I saw my audiologist initially every two weeks for reprocessing and then every three months.

In one study, Dr. Lin and his colleague Wade Chien found that only one in seven adults who could benefit from hearing aids used them. One deterrent is cost ($2,000 to $6,000 per ear), seldom covered by insurance. Another is the stigma of old age.

Hearing loss is a natural part of aging. But for most people with hearing loss, according to the National Institute on Deafness and Other Communication Disorders, the condition begins long before they get old. Almost two-thirds of men with hearing loss began to lose their hearing before age 44. My hearing loss began when I was 30.

Forty-eight million Americans suffer from some degree of hearing loss. If it can be proved in a clinical trial that hearing aids help delay or offset dementia, the benefits would be immeasurable.

“Could we do something to reduce cognitive decline and delay the onset of dementia?” he asked. “It’s hugely important, because by 2050, 1 in 30 Americans will have dementia.

“If we could delay the onset by even one year, the prevalence of dementia drops by 15 percent down the road. You’re talking about billions of dollars in health care savings.”

Should studies establish definitively that correcting hearing loss decreases the potential for early-onset dementia, we might finally overcome the stigma of hearing loss. Get your hearing tested, get it corrected, and enjoy a longer cognitively active life. Establishing the dangers of uncorrected hearing might even convince private insurers and Medicare that covering the cost of hearing aids is a small price to pay to offset the cost of dementia.

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Katherine Bouton is the author of the new book, “Shouting Won’t Help: Why I — and 50 Million Other Americans — Can’t Hear You,” from which this essay is adapted.

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This post has been revised to reflect the following correction:

Correction: February 12, 2013

An earlier version of this article misstated the location of the Medical College of Wisconsin. It is in Milwaukee, not Madison.

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Media Decoder Blog: Netflix Teams With DreamWorks Animation to Create Cartoon Series

LOS ANGELES — Continuing a campaign to deepen its appeal to children, Netflix on Tuesday announced a partnership with DreamWorks Animation to create an original cartoon series.

The show, expected to make its debut on the streaming service in December, will be based on DreamWorks Animation’s coming movie “Turbo,” about a snail who gains the power of superspeed. The Netflix spinoff will be called “Turbo: F.A.S.T.,” which stands for Fast Action Stunt Team.

Netflix is gambling that “Turbo” will be a hit when it arrives in theaters on July 19. Although DreamWorks Animation has high hopes for that movie, it’s still anyone’s guess how audiences will respond; the company’s last film, “Rise of the Guardians,” was a box-office disappointment.

Ted Sarandos, Netflix’s chief content officer, said in a statement that DreamWorks Animation had “a long track record of creating incredibly successful characters.” DreamWorks Animation’s chief executive, Jeffrey Katzenberg, never shy about making a hard sell, called the partnership “part of the television revolution.”

A rival streaming service, Amazon’s Prime Instant Video, is racing to prepare its own original series, and has five children’s shows in development.

Netflix, which recently introduced the original series “House of Cards” to strong reviews from critics, has been working over the last several years to enhance its offerings for children. In 2011, it acquired the streaming rights to DreamWorks Animation’s movies and television specials. New films from Disney, Pixar and Marvel will move from Starz to Netflix in late 2016, following a deal the streaming company made with the Walt Disney Company in December.

Netflix said its members streamed more than two billion hours of children’s content in 2012, taking care to note that it is “always commercial free.” Netflix is also trying to enhance its appeal with multiple audience niches. A new horror series called “Hemlock Grove” is on the way, for instance. “Orange Is the New Black,” an original comedic drama from the “Weeds” creator Jenji Kohan, is aimed at women.

Children’s programming is particularly important to the company’s growth plans. Children are avid streaming consumers, particularly overseas, and Netflix can pitch itself to parents as a commercial-free alternative to television. Cartoons are also less likely to appear on the pirated-content sites that compete with Netflix for viewers.

For DreamWorks Animation, the agreement is part of an effort to diversify into television both as a way to grow and to avoid the sharp ups and downs of the movie business. The company’s shares rose 2.91 percent on Tuesday, to $16.63.

The company has two shows on Nickelodeon that are spinoffs of its “Madagascar” and “Kung Fu Panda” films; a third series built around “Monsters vs. Aliens” is in the works. DreamWorks Animation also has a series built around the film “How to Train Your Dragon” on the Cartoon Network, as well as a growing number of holiday-themed television specials.

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Dorner manhunt: Riverside D.A. files murder charges against ex-cop

The Riverside County district attorney's office filed murder and attempted murder charges Monday against fugitive ex-police officer Christopher Dorner, who is accused of shooting three police officers, one fatally, in Riverside County.

Dist. Atty. Paul Zellerbach said Dorner was charged with one count of murder, with special circumstance allegations in the killing of a peace officer and the discharge of a firearm from a vehicle, in the death of Riverside police Officer Michael Crain, 34, a married father who served two tours in Kuwait as a rifleman in the U.S. Marines.

Dorner faces three additional counts of attempted murder of a peace officer for allegedly shooting and critically injuring Crain's partner and firing upon two Los Angeles police officers in Corona for a protective detail. One of the LAPD officers was grazed by a bullet on the head.

PHOTOS: Manhunt for ex-LAPD officer

The special circumstance allegations make Dorner eligible for the death penalty, Zellerbach said. A no-bail warrant has also been issued for his arrest, meaning he can be "apprehended anywhere," Zellerbach said at a Monday news conference.

Authorities have called Dorner's alleged attack on the Riverside officers a "cowardly ambush," saying he opened fire on them as they sat at a red light early Thursday. The officers were not actively looking for Dorner, officials said.

The surviving officer, whose name has not been released, was "in a lot of pain" and would likely need several surgeries, Riverside Police Chief Sergio Diaz told reporters Monday. It was not yet known if he will be able to return to duty, Diaz said.

TIMELINE: Manhunt for ex-LAPD officer

The shootings attributed to Dorner began Feb. 3 with the deaths of Monica Quan, a Cal State Fullerton assistant basketball coach, and her fiance, Keith Lawrence, a USC public safety officer.

Quan was the daughter of a retired LAPD captain whom Dorner apparently accused online of not representing him fairly at a hearing that led to his firing. In what police said was his posting to Facebook, Dorner allegedly threatened the retired captain and others he blamed for his firing.

More that 50 LAPD families remained under police guard Monday.

FULL COVERAGE: Sweeping manhunt for ex-cop

Hundreds of officers have chased clues about Dorner across Southern California in recent days, responding to possible sightings in San Diego, Big Bear and elsewhere and serving warrants at homes in La Palma and Las Vegas.

The search centered on Big Bear after Dorner's burning truck was found on a forest road on Thursday, and included cabin-by-cabin checks for any sign of Dorner. A scaled-back search continued Monday morning with about 30 officers searching vacation homes and cabins in "an even more remote area," the San Bernardino County Sheriff's Department said.

Los Angeles officials announced on Sunday a $1-million reward for information leading to the capture and arrest of Dorner. The reward — raised from local governments, police departments, civic organizations, businesses and individuals — is thought to be the largest ever offered locally.

Investigators were already following up on more than 600 tips, LAPD Lt. Andy Neiman said Monday morning.

"Our commitment is to finding Mr. Dorner and making this city safe again," Neiman said.

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Spec Ops Command Isn't Sweating Osama Shooter's Magazine Profile

The U.S. Special Operations Command is sick and tired of its elite forces talking to the media about their secretive missions. Yet it’s not concerned about an epic Esquire piece that purports to profile the SEAL who shot Osama bin Laden dead.

The command “has no emotions on this article one way or the other,” Col. Tim Nye, the Special Operations Command’s chief spokesman, tells Danger Room.

Nye didn’t know the Esquire piece, released on Monday, was in the works. He wouldn’t comment on “any classification issues” in the piece, but said that on his initial reading, it contained “very little” about the May 2011 raid that killed the al-Qaida leader “that hasn’t already been made public in other forums.”

The SEAL himself remains nameless and faceless: Esquire refers to him only as The Shooter. But the magazine ran photos — that The Shooter provided — of his gear, particularly with the patch he wore on his helmet during the raid; discusses his family life; and otherwise pulls back some of the veil of secrecy surrounding the most famous anonymous SEAL in history. He’s “thick, like a power lifter” and covered in “an audacious set of tattoos.”

This is getting to be a thing with the “quiet professionals” of special operations. Last year, another member of the bin Laden raid team, Matt Bissonnette, wrote a book describing the raid that landed him in deep trouble with the Pentagon, although the Defense Department has yet to follow through on a threat to take legal action against him. Other, retired SEALs made a campaign ad blasting President Obama over the White House’s own leaks to the press about the raid. Adm. William McRaven, one of the driving forces behind the raid and now the chief of U.S. Special Operations Command, issued an open letter in August telling current and former elite U.S. troops to shut their mouths about their experiences on sensitive missions — a few months after denying that he helped Kathryn Bigelow make Zero Dark Thirty.

“There is, in my opinion, a distinct line between recounting a story for the purposes of education or entertainment and telling a story that exposes sensitive activities just to garner greater readership and personal profit,” McRaven wrote in August.

The Shooter isn’t profiting: in fact, he’s out of a job and unsure about his next career move, which is a major theme of the piece. While there’s as much self-promotion in the piece as can be expected of a profile of the guy who killed bin Laden — while not revealing his identity — the article devotes much of its focus to the difficulties he and his colleagues have adjusting to civilian life and a tough economy.

According to the Esquire piece, The Shooter struck up a relationship with reporter Phil Bronstein shortly after returning from a four-month Afghanistan tour not long after returning from the bin Laden raid. A Washington dinner party in March 2012 was the first time they met, following “several phone conversations and much checking on my journalism background, especially in war zones.” He’s wary of violating operational security, and won’t even confirm whether Bissonnette was really on the raid. But a more fulsome journalistic relationship with Bronstein develops The Shooter leaves the Navy shortly after his return from Afghanistan, and much of the piece is devoted to relating details of the raid — seemingly nothing classified — from The Shooter’s perspective.

For instance: an early alternative to the raid wasn’t just firing a small missile from a drone at bin Laden’s Abbottabad compound (a “hammer throw,” in The Shooter’s phrase), but “bomb[ing] the piss out of the compound with two-thousand-pound ordnance.” SEALs initially thought they were going to an unrelated war zone like Libya when they were called in to discuss an imminent deployment. McRaven is said to have delayed the raid by a day, citing poor weather to his superiors, to prevent it from happening the day of the White House Correspondents Dinner.

The Shooter is an excitable sort. His favorite word to describe the raid, in retrospect, is “awesome.” He pumped himself up for the raid by listening to the Game and Lil Wayne’s “Red Nation” on the treadmill. Yet The Shooter spends a lot of time reflecting on how the raid seemed doomed. He took to calling his fast-rope team the Martyrs Brigade, as he guessed the house was rigged to explode. If Pakistani troops showed up at the compound, the SEALs’ plan was to surrender, go to jail and wait until Vice President Biden flew to Islamabad to negotiate their release. Not that that reassured The Shooter: “It was either death or a Pakistani prison, where we’d be raped for the rest of our lives.”

Instead, he was part of a three-person team who ran up to the third floor of the compound, and he himself took the kill shot — on instinct. His generic mission training, for years, involved shooting a lot of dummies with bin Laden visages, and so when he saw the al-Qaida leader, using his youngest wife as a human shield, “That’s him, boom, done.” The compound turned up not just bin Laden’s hard drives (and porn), but duffel bags full of opium. He watched Obama’s announcement of the mission in Afghanistan while eating a sausage-egg-and-extra bacon sandwich and thinking: “I wish we could live through this night, because this is amazing. I was still expecting all kinds of funky shit like escape slides or safe rooms.”

Life after the SEALs hasn’t been as amazing. The Shooter wanted to see his kids grow up, so he retired before the 20 years necessary for his full benefits package to kick in. He’s got to buy health insurance on the open market, but he can’t find a job, and he’s out the $60,000 annual salary he earned as a SEAL. (Former Veterans Affairs official and Iraq/Afghanistan veteran Brandon Friedman tweets that the VA covers five years of health care after separation from the military.) Military transition programs to the civilian job market turn out not to be particularly useful. The Shooter doesn’t want to go into private security — “I don’t have a need for excitement anymore,” he says — and job prospects aren’t turning up.

Nye said The Shooter’s transition to civilian life is an issue for the Navy, and not Special Operations Command, to address. But he pointed to several command programs designed to ease the adjustment, like its Care Coaliton that aids physically injured elite troops.

If anything, it’s amazing that The Shooter has stayed nameless and faceless nearly two years after the bin Laden raid. The social pressures for exposure must be enormous, even if special operators wish to remain “quiet professionals.” With his Esquire profile, The Shooter may have figured out a way to balance acclaim and anonymity.

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