May 1974: Guffaws all around as President Richard Nixon was handed a plastic alligator, among other items, by some of the midshipmen receiving his congratulations at the Naval Academy’s graduation proceedings. President Nixon’s speech was more sober: He declared that his policy of “détente precluded interference by the United States in the domestic affairs of other nations.” “We cannot gear our foreign policy to the transformation of other societies,” he said. “In the nuclear age, our first responsibility must be the prevention of a war that could destroy all societies.” Photo: Mike Lien/The New York Times













