Tech. Sgt. Martha Dunning, a member of the 601st Air and Space Operations Center Honor Guard, lays a wreath at the 9/11 Memorial at the 601st AOC Sept. 11, 2011, at Tyndall Air Force Base, Fla. The Continental U.S. North American Aerospace Defense Command Region-1st Air Force (Air Forces Northern) held a ceremony to honor the memory of those who died during the worst terrorist attack on American soil. (U.S. Air Force photo by Angela Pope)