Former U.S. President John F. Kennedy and first lady Jacqueline Kennedy descend the stairs from Air Force One after arriving at Love Field in Dallas,Texas, in this handout image taken on November 22, 1963. Friday, November 22, 2013, will mark the 50th anniversary of the assassination of President Kennedy. REUTERS/Cecil Stoughton/The White House/John F. Kennedy Presidential Library (UNITED STATES: Tags: POLITICS ANNIVERSARY) ATTENTION EDITORS – THIS IMAGE WAS PROVIDED BY A THIRD PARTY. FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS. THIS PICTURE IS DISTRIBUTED EXACTLY AS RECEIVED BY REUTERS, AS A SERVICE TO CLIENTS – RTX15KWH
