Former United States President John F. Kennedy (R) is joined by his brothers former Attorney General Robert F. Kennedy (L) and former U.S. Senator Edward Kennedy at the White House in Washington, in this handout image taken on August 28, 1963. 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
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