Link: http://www.theaustralian.news.com.au/story/0,25197,25683250-601,00.html
DESPITE pleges to protect South Vietnam, former US president Richard Nixon privately vowed to "cut off the head" of its leader unless he backed peace with the communist North, tapes released today showed. The tapes appear to confirm charges by South Vietnam's late president, Nguyen Van Thieu, who tearfully accused the United States of breaking its word to protect Saigon when the southern capital fell in 1975. Listen to the tapes at the Nixon Library website.