U.S. President Barack Obama began four days of high-level diplomacy Friday, with the G-8 summit at Camp David outside Washington.
World Leaders Arrive in Washington for G8
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Oxfam activist wearing masks depicting G-8 world leaders participate in a demonstration outside the White House in Washington, May 17, 2012.
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Jim Stull, 78, a life long resident of Thurmont, Maryland, places American flags along an exit ramp that will be traveled by dignitaries motorcading to Camp David for the G-8 Summit.