Final answer:
The Bay of Pigs decision is an example of 'groupthink', where individuals conform to a perceived group consensus and suppress dissenting views, causing poor decision-making.
Step-by-step explanation:
The historical example of the Bay of Pigs decision, where everyone in the meeting went along with the leader's opinion without expressing their doubts even though they had them, is an example of groupthink. This psychological phenomenon occurs when the desire for harmony or conformity in a group results in irrational or dysfunctional decision-making. Individuals suppress dissenting viewpoints, leading to an illusion of unanimity despite private reservations about the decision. The Bay of Pigs fiasco shows the negative outcomes that can arise when critical voices are muted and potential dissent is quashed in favor of apparent group consensus.