We know evil when we see it-or do we? This program follows three people who confront a particular version of evil every day. Viewers meet Roy Ratcliff, the minister who baptized serial killer Jeffrey Dahmer behind bars and continues the practice with other hardened criminals; Aya Schneerson, a UN aid worker who administers food and medical help in the war-torn Democratic Republic of the Congo; and a group of neuroscientists who examine conscience and morality via cutting-edge fMRI imaging techniques. Philip Zimbardo, whose 1971 Stanford Prison Experiment probed abusive aspects of the human mind, shares his library of images from the study.

Encoded with permission for digital streaming by Infobase on Jan. 13, 2010. Learn360 is distributed by Infobase for Films for the Humanities & Sciences, Cambridge Educational, Meridian Education, and Shopware.

Evil: What Is It? (0:58) -- Experiment in Evil (1:06) -- Philip Zimbardo Prison Experiment (1:03) -- Evil in the Human Heart (0:46) -- Man of God and Mass Murderer (1:30) -- Possibility of Forgiveness (0:58) -- Technology and Brain Processes (1:08) -- Moral Brain (1:11) -- Food Distribution in Congo (1:53) -- Democratic Republic of Congo (1:25) -- Chaos in Congo (1:17) -- Fertile Ground for Evil (1:18) -- Psychological Torment (1:15) -- Process of Evil (1:07) -- Jeffrey Dahmer's Request (1:06) -- Escalating Aggression (1:48) -- Sadistic Behavior (1:02) -- Situational Evil (1:06) -- Morals and Brain Processes (1:14) -- Moral Dilemmas (1:07) -- Food Distribution in Congo (1:37) -- Story of Terror (1:29) -- Congo Conflict (1:07) -- Village Attacks (1:27) -- In Search of Raiders (0:50) -- Transformation of Experiment Designer (1:15) -- Critics of Zimbardo's Experiment (1:08) -- Situations Undermine Human Nature (1:33) -- Mechanics of Moral Judgment (2:21) -- Baptism of Jeffrey Dahmer (2:02) -- Congo in Chaos (1:22) -- Lack of Accountability for Evil Acts (1:32) -- Mass Graves (1:25) -- Emotions vs. Cognitive Control (1:29) -- Belief in a Soul (1:03) -- Scientific Perspective on Evil (1:47) -- Humans: Capacity for Good and Evil (0:52).