In Nigeria, Polio Vaccine Workers Are Killed by Gunmen

At least nine polio immunization workers were shot to death in northern Nigeria on Friday by gunmen who attacked two clinics, officials said. The killings, with eerie echoes of attacks that killed nine female polio workers in Pakistan in December, represented another serious setback for the global effort to eradicate polio. Most of the victims were women and were shot in the back of...

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Business Week in Pictures

Phil Libin, the chief executive of Evernote, during a staff meeting at Evernote’s headquarters in Redwood City, Calif. Evernote is among the privately held Silicon Valley start-ups that are worth more than $1 billion. An unprecedented number of high technology start-ups, easily 25 and possibly exceeding 40, have crossed that threshold. Many employees are quietly growing rich, or at least building...

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Big Bear locked down amid manhunt

The bustling winter resort of Big Bear took on the appearance of a ghost town Thursday as surveillance aircraft buzzed overhead...

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Fate of Historic Landsat Mission Hinges on Upcoming Launch

Since 1972 the Landsat mission has been monitoring natural and human-made changes to our planet. But the continuity of that scientifically precious dataset could be lost unless all goes according to plan on Monday, when the Landsat 8 satellite is scheduled to be launched into orbit from Vandenberg Air Force Base in California. Landsat 8 will take over for the hobbled 14-year old Landsat...

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Well: Think Like a Doctor: A Confused and Terrified Patient

The Challenge: Can you solve the mystery of a middle-aged man recovering from a serious illness who suddenly becomes frightened and confused?Every month the Diagnosis column of The New York Times Magazine asks Well readers to sift through a difficult case and solve a diagnostic riddle. Below you will find a summary of a case involving a 55-year-old man well on his way to recovering from a series of...

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Trade Deficit Narrows, Brightening Outlook

The United States economy most likely expanded slightly in the fourth quarter, instead of contracting, according to trade data released Friday that suggested a surprise drop in gross domestic product reported last week may have been overstated. The country’s trade deficit narrowed to $38.5 billion in December, its lowest reading in nearly three years, Commerce Department data showed....

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Ex-cop at center of manhunt called 'depraved,' 'cowardly'

Those who knew Christopher Jordan Dorner during college expressed shock at the news that the former college football player...

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Investigators Pinpoint a Short Circuit Within a 787 Dreamliner Battery

The National Transportation Safety Board believes an internal short circuit within a single cell inside a lithium-ion battery led to a fire aboard a Boeing 787, shedding new light on the battery problem that has grounded every one of the 50 Dreamliners in service worldwide.The agency said Wednesday that it has completed disassembling the 32-volt battery that caught fire on a Japan Airlines...

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Well: The 'Monday Morning' Medical Screaming Match

I did not think I would ever see another “morbidity and mortality” conference in which senior doctors publicly attacked their younger colleagues for making medical errors. These types of heated meetings were commonplace when I was a medical student but have largely been abandoned.Yet here they were again on “Monday Mornings,” a new medical drama on the TNT network, based on a novel by Dr. Sanjay Gupta,...

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U.S. Official Faults F.A.A. for Missing 787 Battery Risk

The nation’s top transportation safety official said Thursday that the Federal Aviation Administration accepted test results from Boeing in 2007 that failed to properly assess the risks of smoke or fire leaking from the batteries on Boeing’s new 787 jets.   Deborah Hersman, the chairwoman of the National Transportation Safety Board, told reporters that the problems seemed to have...

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