President John F. Kennedy delivers his inaugural address after taking the oath of office at the Capitol in Washington on Jan. 20, 1961. (Associated Press)
President John F. Kennedy delivers his inaugural address after taking the oath of office at the Capitol in Washington on Jan. 20, 1961. (Associated Press)
Row upon row of white marble monuments at Arlington National Cemetery honor military veterans. More than 400,000 graves line up on its 624 acres, which also hold the Tomb of the Unknowns and the grave of John F. Kennedy. (The Washington Times)
** FILE ** Caroline Kennedy speaks about the launch of the JFK Digital Archive, as part of the 50th anniversary of the inauguration of President John F. Kennedy, at the National Archives in Washington, on Thursday, Jan. 13, 2011. (AP Photo/Jacquelyn Martin)
President John F. Kennedy delivers his inaugural address after taking the oath of office at the Capitol in Washington on Jan. 20, 1961. (Associated Press)
Robert F. Kennedy Jr., left, makes comments during the opening minutes of a interview with journalist Charlie Rose in front of a full audience at the AT&T Performing Arts Center Friday, Jan. 11, 2013, in Dallas, Texas. The Kennedys are in Dallas as a year of observances begins for the 50th anniversary of President John F. Kennedy's assassination. (AP Photo/Tony Gutierrez)
Robert F. Kennedy Jr., left, makes comments during the opening minutes of a interview with journalist Charlie Rose in front of a full audience at the AT&T Performing Arts Center Friday, Jan. 11, 2013, in Dallas, Texas. The Kennedys are in Dallas as a year of observances begins for the 50th anniversary of President John F. Kennedy's assassination. (AP Photo/Tony Gutierrez)
** FILE ** President John F. Kennedy delivers his inaugural address after taking the oath of office at Capitol Hill in Washington, D.C., on Jan. 20, 1961 (AP Photo, File)
Empress Farah of Iran and Mrs. Jacqueline Kennedy pause on a tour of the White House south grounds, Washington, today, April 12, 1962, to visit with John F. Kennedy, Jr., year and a half old son of the President and Mrs. Kennedy. Macaroni, Caroline Kennedy's pony, has the freedom of the grounds and chimes in. (AP-PHOTO/pl)
