Rachel Bernstein is a cult expert, a marriage and family therapist, and the host of the podcast IndoctriNation. In this interview, Bernstein explains why some people are more susceptible to joining cults—and how the groups maintain a grip on their followers.Support us by supporting our sponsors.Planet Money: Listen to Planet Money from NPR wherever you get your podcasts!Audible: New members can try Audible free for 30 days! Visit Audible.com/AS or text AS to 500500.See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.