US President Barack Obama (L) and US Major General Bradley A. Becker, Commander of the Military District of Washington, listen to the US national anthem before placing a wreath at the Tomb of the Unknowns to honor Memorial Day at Arlington National CemeteryMay 30, 2016 in Arlington, Virginia. / AFP / Brendan Smialowski (Photo credit should read BRENDAN SMIALOWSKI/AFP/Getty Images)
{}