To lessen the threat of an accidental nuclear war, the United States and the Soviet Union agree to establish a “hot line” communication system between the two nations. ... The United States had discovered that the Soviets were building missile sites in Cuba capable of firing missiles with nuclear warheads.
I believe it is B) Weather experts miscalculated the storm. The Miami hurricane developed pretty quickly going from a tropical storm to a category 4 storm in less than 24 hours.