Groupthink. The tendency for very cohesive groups with strong leaders to disregard and defend against information that goes against their plans and beliefs. The group collectively and the members individually remain loyal to the party line while happily marching off the cliff, all the while blaming “them” (i.e., outsiders) for the height and situation of the cliff. (Also from Huff, Good Computing, an unpublished manuscript for a textbook in computer ethics.)