A major blow to American and foreign support of the Vietnam War came in June 1971 when the New York Times started publishing excerpts of a secret government study on U.S. involvement in the war. Daniel Ellsberg, a former Defense Department employee, had leaked the secret report to the newspaper. Known as the Pentagon Papers, the documents revealed how each presidential administration, beginning with Truman and continuing on through Eisenhower, Kennedy, and Johnson, had lied to the American public and Congress about its intentions, ignored international laws and treaties, and manipulated the government in Saigon for its own ends. The publication of the Pentagon Papers convinced many Americans that the war was wrong and that their government knew it. Nixon ordered the Justice Department to seek an injunction to prevent the New York Times and other newspapers from printing any...