Jack Mandelbaum, a Holocaust survivor from the Polish city of Gdansk, annexed by Nazi Germany during World War II, poses in front of a photograph showing him as a youth. Tobias Schwarz/AFP/Getty Images hide caption

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The California Aqueduct carries water from the Sierra Nevada Mountains to Southern California. It is one of four aqueducts in the region that glides across the San Andreas Fault. David McNew/Getty Images hide caption

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Swedish navy corvette HMS Visby patrols in the Stockholm Archipelago, Sweden, in October. The Swedish military was searching for evidence of suspected undersea activity in its waters amid reports of a Russian submarine intrusion. Marko Saavala/TT News Agency/AP hide caption

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Holocaust survivors light candles during a ceremony at the Asociacion Mutual Israelita Argentina (AMIA) building for Holocaust Victims Memory Day in Buenos Aires, the site of a deadly bombing two decades ago. Alejandro Pagni/AFP/Getty Images hide caption

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Argentina's President Cristina Fernandez unveiled her plan to replace her country's intelligence service with a new agency. She delivered a televised speech while seated in a wheelchair in Buenos Aires. Reuters/Landov hide caption

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Free Syrian Army fighters run behind sandbags in Daraa Al-Mahata, in southern Syria, on Jan. 21. Many moderate rebels joined the uprising to fight against President Bashar Assad, but the U.S. plans to train them to fight the self-proclaimed Islamic State. Wsam Almokdad/Reuters/Landov hide caption

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A memorial at the site of the first explosion in the Boston Marathon bombing. Defense attorneys say too many people in the potential jury pool have some kind of personal connection to the case. Andrew Burton /Getty Images hide caption

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