Premise: Cuban Missile Crisis . After a long period of tense negotiations , an agreement was reached between U.S. President John F. Kennedy and Khrushchev . John F. Kennedy . In October 1962 , U.S. spy planes discovered that Soviet missile bases had been deployed in Cuba ; the resulting period of tensions , termed the Cuban Missile Crisis , nearly resulted in the breakout of a global thermonuclear conflict .
Hypothesis: John F. Kennedy was not the president of the United States of America.
Label: CONTRADICTION