Soviet premier Nikita Khrushchev (1894 - 1971) (center) and American vice president Richard Nixon (1913 - 1994) (third from right) share a laugh during Nixon's visit to the USSR, when he and Khrushchev engaged in an informal debate about the merits of capitalism vs. communism at the opening of the American National Exhibition in Moscow, Soviet Union, July 1959. (Photo by Authenticated News/Getty Images)