What is a cult and how is it different from a religion? Recent revelations about the Church of Scientology provide a frightening example of how cult leaders can manipulate their flock using basic principles of group psychology. Later we talk to a RD listener who is trying to leave the Mormon church, and finding that it is harder than one would think. Finally, a former Jehovah's Witness asks for advice on how to convince his younger brother to leave the sect. Reasonable Doubts: Your skeptical guide to religion offering news and commentary of interest to skeptics, atheists, humanists, apologists looking for a challenge and freethinkers of all persuasions.