** FILE ** Soldiers of the 3rd U.S. Infantry Regiment, also known as The Old Guard, place flags at grave sites at Arlington National Cemetery in Arlington, Va., Thursday, May 22, 2014. (AP Photo/Cliff Owen)
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** FILE ** Soldiers of the 3rd U.S. Infantry Regiment, also known as The Old Guard, place flags at grave sites at Arlington National Cemetery in Arlington, Va., Thursday, May 22, 2014. (AP Photo/Cliff Owen)
