Scientology exposed: In Going Clear: Scientology, Hollywood, and the Prison of Belief, Pulitzer prize-winning Lawrence Wright takes aim at Scientology, Tom Cruise and David Miscavige in his exhaustively investigated book on the cult from its founding by L. Ron Hubbard to the present day. Among the highlights: Scientology head David Miscavige physically abuses his minions and makes them salute dogs. Tom Cruise believes he is No. 3 in the cult's hierarchy, behind Miscavige and L. Ron Hubbard. And John Travolta basically has to do whatever Scientology wants him to do because the cult is blackmailing him with evidence that he is gay.