President Barack Obama holds a news conference at the Eisenhower Executive Office Building on December 8, 2010 in Washington, DC. Brendan Hoffman/Getty Images hide caption

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Afghan brothers Barangai (R), 6, and Shaista Khan, 4, pose for a portrait just outside a U.S. Marines combat outpost in Marjah, Helmand province, southern Afghanistan, on April 11, 2010. Maurico Lima/AFP/Getty Images hide caption

itoggle caption Maurico Lima/AFP/Getty Images