Illusion of invulnerability, leading to over-optimism Rationalizing warnings that might challenge the group's assumptions Unquestioned belief in the group's morality Stereotyping those who are opposed to the group as weak, evil, biased, or stupid Direct pressure on any member who expresses strong arguments against any of the group's stereotypes, illusions, or commitments Self-censorship of ideas that deviate from the apparent group consensus Illusions of unanimity among group members Mindguards—self-appointed members who shield the group from dissenting information