A sailor plays “Taps” during the graveside interment ceremony at Arlington National Cemetery for four sailors killed during the Vietnam War. Lt. Dennis Peterson, from Huntington Park, Calif.; Ensign Donald Frye, from Los Angeles; and Aviation Antisubmarine Warfare Technicians 2nd Class William Jackson, from Stockdale, Texas, and Donald McGrane, from Waverly, Iowa, all four assigned to Helicopter Squadron (HS) 2, were killed when their SH-3A Sea King helicopter was shot down July 19, 1967 over Ha Nam Province, North Vietnam. (U.S. Navy photo by Mass Communication Specialist 2nd Class Todd Frantom/Released)