Members of the U.S. Army Ceremonial Honor Guard prepare for a 21-gun salute.
Members of the U.S. Army Ceremonial Honor Guard prepare for a 21-gun salute at Arlington National Cemetery, Va., on Nov. 17, 2009, during an interment ceremony for members of the World War II B-25 Mitchell bomber crew that was lost on Dec. 5, 1942, near Papua, New Guinea.