FILE - Robert F. Kennedy, 38-year-old American attorney general and brother of the late U.S. President, John F. Kennedy, is accompanied by his wife Ethel, leaving the U.S. Embassy for the airport in London, Jan. 25, 1964, to fly to Derbyshire to visit the grave of his sister who died in 1947 in a plane crash. (AP Photo/Laurence Harris, File)