President Barack Obama and Vice President Joe Biden pause during a wreath laying ceremony at the Tomb of the Unknowns

President Barack Obama and Vice President Joe Biden pause during a wreath laying ceremony at the Tomb of the Unknowns at Arlington National Cemetery in Arlington, Va., on Inauguration Day, Sunday, Jan. 20, 2013. Major General Michael S. Linnington, Commanding General of the Military District of Washington, D.C., accompanies them.