Answer: GROUPTHINK.
Groupthink can be defined as a process of deductions of inferences or making decisions by a group, especially one characterized by lacking critical acceptance of or conformity to a perceived majority view.
In the bay of pigs incident, President Kennedy was briefed by CIA about their plans to train Cuban exiles for an invasion of their homeland. The plan was a disaster because the invasion was a failed one. Most of the decisions authorised by President Kennedy was as a result of group think.