Friends of Marine Sgt. Sean Callahan, of Warrenton, Va., who was killed in Afghanistan, hug near his casket after a burial service at Arlington National Cemetery in Arlington, Va., Monday, May 2, ... more 
Friends of Marine Sgt. Sean Callahan, of Warrenton, Va., who was killed in Afghanistan, hug near his casket after a burial service at Arlington National Cemetery in Arlington, Va., Monday, May 2, 2011. less 
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Associated Press | Photo By Evan Vucci
Mon, May 2, 2011 1:34 PM EDT