Book excerpt: Cults today are bigger than ever, with broad ramifications for national and international terrorism. In this newly revised edition of her definitive work on cults, Singer reveals what cults really are and how they work, focusing specifically on the coercive persuasion techniques of charismatic leaders seeking money and power. The book contains fascinating updates on Heaven's Gate, Falun Gong, Aum Shinrikyo, Hare Krishna, the Reverend Sun Myung Moon, and the connection between cults and terrorism in Al Queda and the PLO.