ARLINGTON NATIONAL CEREMONY, Va. -- A young boy lays an American flag on a 9/11 memorial marker here Sept. 11. Patriot Day observance wreath laying ceremony honors the victims and families of the Sept. 11, 2001 attacks on the Pentagon, Twin Towers and Flight 93 over Pennsylvania. (U.S. Air Force photo by Tech. Sgt. Kevin J. Gruenwald)