** FILE ** In this Nov. 25, 1972, file photo President Nixon confers with Henry A. Kissinger in New York after the presidential adviser returned from a week of secret negotiations in Paris with North Vietnam's Le Duc Tho. Documents released Tuesday, Dec. 2, 2008, from the Nixon years shed new light on just how much the Nixon White House struggled with growing public unrest over the protracted war in Vietnam. (AP Photo/File)