FILE - In this Nov. 25, 1972, file photo President Nixon confers with his adviser Henry Kissinger, right, after Kissinger's return from a week of secret negotiations in Paris with North Vietnam's Le Duc Tho. Forty years after the explosive leak of the Pentagon Papers, a secret government study chronicling deception and misadventure in U.S. conduct of the Vietnam War, the full report is being released Monday, June 13, 2011. The report was leaked primarily by foreign policy analyst Daniel Ellsberg, in a brash act of defiance that stands as one of the most dramatic episodes of whistleblowing in U.S. history. Ellsberg served with the Marines in Vietnam and came back disillusioned. He was a protégé of Kissinger's, who called the young man his most brilliant student. (AP Photo/File)