Artifacts from the Kennedy assassination that are preserved in the National Archives include (clockwise from left): The bloodstained outfit Jacqueline Kennedy refused to change out of until her return to Washington; a bullet found on a stretcher at Parkland Memorial Hospital where President Kennedy was taken; a bullet hole in the shirt Lee Harvey Oswald was wearing when he was killed by Jack Ruby; the dictabelt from a Dallas police motorcycle that recorded audio of the assassination; and the movie camera used by Abraham Zapruder when he filmed the moment of Kennedy's death.(The Associated Press (left) and The National Archives)