CLARIFICATION IN THE SECOND SENTENCE - FILE - Two West German border police helicopters that carried armed terrorists and their nine Israeli Olympian hostages, stand at Fuerstenfeldbruck air force base, twenty miles west of Munich, Germany, on Sept. 7, 1972. The German and Israeli presidents are to join relatives of the 11 Israeli athletes killed in the attack by Palestinian militants on the 1972 Munich Olympics to mark the 50th anniversary. (AP Photo, File)