In this Dec. 1, 1992 file photo, Sen. John Kerry, D-Mass., left, chairman of the Senate Select Committee on POW/MIA Affairs, listens to Sen. John McCain, R-Ariz., a former POW in Vietnam, during a hearing of the committee on Capitol Hill in Washington. The committee released classified testimony detailing the Pentagon's intelligence gathering efforts in Vietnam.
(AP Photo/Ron Edmonds, file)