Memorial Day Commemorated At Arlington National Cemetery

ARLINGTON, VA – MAY 27: First lady Michelle Obama (R) and U.S. President Barack Obama (L) greet people while visiting section 60 at Arlington Cemetery, May 27, 2013 in Arlington, Virginia. For Memorial Day President Obama layed a wreath at the Tomb of the Unknowns, paying tribute to military veterans past and present who have served and sacrificed their lives for their country. (Photo by Mark Wilson/Getty Images)