FILE - Members of the Kennedy family kneel at the grave site of the late President John F. Kennedy at Arlington National Cemetery after they visited the grave of the late Robert F. Kennedy nearby, on the anniversary of his death 16 years ago, June 6, 1984. From left: Emily and Robert F. Kennedy, Jr.; Chris Kennedy; Ethel Kennedy; Michael Kennedy and Kathleen Kennedy, the wife and children of Robert Kennedy. Sen. Edward M. Kennedy (D-Mass.) stands at back. (AP Photo/Barry Thumma, File)