The Secret Diplomacy of the Vietnam WarIn 1971 RAND consultant Daniel J. Ellsberg made national news by handing over to the New York Times a top secret Pentagon study on the Vietnam War. Publication of the Pentagon Papers rocked the American defense establishment and fanned the flames of the growing antiwar protest movement in the United States. By late that year, most of the Pentagon Papers had been released to the public. Four volumes, however, were held back, Ellsberg himself conceding