Members of the US Marine Corps Honor Guard stand on the stairs preparing for the arrival of Mexican President Felipe Calderon at the Tomb of the Unknown Soldier on May 20, 2010 at Arlington National Cemetery in Arlington, Virgina. AFP Photo / Paul J. Richards
{"Image ImageDescription": "Members of the US Marine Corps Honor Guard stand on the stairs preparing for the arrival of Mexican President Felipe Calderon at the Tomb of the Unknown Soldier on May 20, 2010 at Arlington National Cemetery in Arlington, Virgina.    AFP Photo / Paul J. Richards (Photo credit should read PAUL J. RICHARDS/AFP via Getty Images)", "Image Copyright": "2010 AFP"}