What if, instead of organizing a rag-tag group of Cuban exiles to invade Cuba and overthrow Castro, either Eisenhower or Kennedy recognizes the scheme won't work and they shut down the invasion plans? Would Castro still become a Communist and move into the Soviet sphere of influence? How would this POD impact the Vienna Summit between JFK and Khrushchev? Would the Cuban Missile Crisis, or a missile crisis of a similar kind, possibly still happen without the Bay of Pigs?