> even a decision made by a group of top-of-their-field experts, they still may not make the best decision. Group think may actually lead to bad decisions. > author contemplated why j. f. kennedy and his circle could have agreed to the bay of pigs mission, seeing as they are all such intelligent people and the plan failed so horribly. \ at times people may be more concerned with the approval of group members than the best solution possible. > janis discusses how at a meeting for people trying to quit smoking she noticed the dominant members state that it was virtually impossible to quit, others eagerly agreed. When a member who had quit smoking disagreed an angry discussion erupted. \ the next meeting the dissident had returned to smoking and was accepted back into the group. Groupthink: a deterioration of mental efficiency, reality testing and moral judgement that results from in-group pressures.