i remember reading where he said there were four reasons why the bay of pigs invasion failed : first , was the place of the landing was wrong , and secondly , ambassador adlai stevenson was embarrassed by having to deny to the cuban foreign minister that the cia had nothing to do with the pre-invasion air strikes , when , in fact , they were being flown by cia pilots , and third he thought the pentagon should manage the invasion openly and not by a secret army .