Answer:
The explanation is the answer.
Step-by-step explanation:
The John F. Kennedy who was assassinated in 1963 had begun to change the world. Admittedly, the failure of the Bay of Pigs invasion did not lessen the enthusiasm of either the president or his brother, Bobby, for covert action and counter-insurgency.
The military advisers committed to Vietnam were part of a flexible response -- but so was the inspirational Peace Corps.