When it comes to an employee's mental health status, what does an employer need to know, or have a right to know? iStockphoto hide caption

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Iraqi security forces and allied Shiite militiamen look for Islamic State extremists in Tikrit on Tuesday. Iraqi forces were going house-to-house in search of snipers and booby traps. Khalid Mohammed/AP hide caption

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State police officers patrol a highway between Ciudad Victoria and Matamoros, in northeast Mexico, in 2011. Mexico's drug and turf wars have descended on the once tourist friendly border town of Matamoros. Alexandre Meneghini/AP hide caption

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Prolonged nuclear talks gave Russian journalists time to play a game of giant chess Wednesday in a courtyard of the Beau-Rivage Palace Hotel in Lausanne, Switzerland. Brendan Smialowski/AP hide caption

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"We must try as best we can to balance isolation and engagement, pressure and incentives, so that human rights and dignity are advanced over time," Obama said five years ago, accepting the Nobel Peace Prize. Mark Wilson/Getty Images hide caption

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