I do not endorse them [Landmark Education] - never have. The SOBs have already sued me once. I'm afraid to tell you what I really think about them be… - Margaret Singer

While everyone is influenced and persuaded daily in various ways, vulnerability to influence fluctuates. The ability to fend off persuaders is reduced when one is exhausted, rushed, stressed, uncertain, lonely, indifferent, uninformed, aged, very young, unsophisticated, ill, brain- damaged, drugged, drunk, distracted, fatigued, frightened, or very dependent.

Thought reform is accomplished through the use of psychological and environmental control processes that do not depend on physical coercion. Today's thought reform programs are sophisticated, subtle, and insidious, creating a psychological bond that in many ways is far more powerful than gun-at-the-head methods of influence. The effects generally lose their potency when the control processes are lifted or neutralized in some way. That is why most Korean War POWs gave up the content of their prison camp indoctrination programs when they came home, and why many cultists leave their groups if they spend a substantial amount of time away from the group or have an opportunity to discuss their doubts with an intimate.

Hundreds of other cult leaders have gathered far more followers than Jones by promising new psychological and spiritual utopias. They have succeeded by combining various ages-old psychological and social persuasion techniques in an atmosphere os Madison Avenue soft-sell approaches. Because most of the followers have been youthful or poor, little attention and credence has been given to reports from ex-members, families and friends who report the effects of the techniques of manipulation used by the groups.