March 18 - March 24, 2012 (33 images)

Updated: May 1, 2012 at 11:45 AM
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U.S. President Barack Obama talks about the shooting of Florida teenager Trayvon Martin as he introduces Jim Yong Kim, president of Dartmouth College, as a nominee to become president of the World Bank in the Rose Garden of the White House in Washington, DC on March 23, 2012. UPI/Andrew Harrer/Pool
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