BEIJING, CHINA: US president Richard Nixon (L) toasts with Chinese Prime Minister, Chou En Lai (R) in February 1972 in Beijing during his official visit in China. Le prTsident amTricain Richard Nixon (G) trinque avec le leader communiste chinois Chou En Lai (D) en fTvrier 1972 a Pekin, lors de son voyage officiel en Chine. (Photo credit should read AFP via Getty Images)