Philip Zimbardo has spent decades researching the transformation of character that occurs when generally good people are led to engage in evil actions. In this lecture, Zimbardo discourses on theories of conformity, prejudice, aggression, social influence, and antisocial behavior. Topics include the permeability of behavioral boundaries; the nature of evil and its societal consequences; Zimbardo’s Lucifer Effect; the Abu Ghraib atrocities, a recent example of evil in action; blind obedience as demonstrated by Stanley Milgram’s experiments and by the Jonestown mass suicide; anonymity as an enabler of evil action, as illustrated by the Ku Klux Klan; Zimbardo’s Stanford Prison Experiment; dehumanization as demonstrated by Albert Bandura’s experiments and by the Rwandan genocide; how systems create evil, as illustrated by the Holocaust and the lynching of African-Americans; heroism as an antidote to evil; and more. A Q&A session follows. Viewer discretion is advised. (2 hours 7 minutes)