Ukrainian soldiers muster at a point close to Luhansk in eastern Ukraine on Wednesday, as Ukrainian troops make a push into rebel-held territory. Petro Zadorozhnyy/AP hide caption

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An employee works at the axle gear production line at a BMW plant in Dingolfing, southern Germany, on March 23, 2012. This BMW plant installed special ergonomic workspaces to help its rapidly aging workforce — a trend that's reflected in Germany's economy as a whole. That's one reason why critics oppose a new move to lower the country's early retirement age. Christof Stache/AFP/Getty Images hide caption

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Truck driver Michael Harry K. is brought into a courtroom in the regional court in Wuerzburg, Germany, on Monday. His face is blurred in accordance with German laws. Karl-Josef Hildenbrand/DPA /LANDOV hide caption

itoggle caption Karl-Josef Hildenbrand/DPA /LANDOV

Stefan Daniel is a 51-year-old German clinical psychologist with multiple sclerosis. He has decided that he will end his life, by taking a barbiturate while sitting in his own living room, when he can no longer see or speak. Esme Nicholson for NPR hide caption

itoggle caption Esme Nicholson for NPR

Members of the Israeli security forces stand guard as Palestinian Muslims perform Friday prayers on a street outside the Old City of Jerusalem on Friday. Ahmad Gharabli /AFP/Getty Images hide caption

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An Israeli army officer walks near the entrance of a tunnel allegedly used by Palestinian militants for cross-border attacks, at the Israel-Gaza border. A network of tunnels Palestinian militants have dug from Gaza to Israel is taking center stage in the latest war between Hamas and Israel. Jack Guez/AP hide caption

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