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We explore one of the world's most controversial and secretive religions -- Scientology. Also, how much do we really know about the Mormon faith?
Matthew Bowman talks about his book, "The Mormon People: The Making of an American Faith."
Hugh Urban talks about his book, "The Church of Scientology: A History of a New Religion."
Mark Headley talks about his book, "Blown for Good: Behind the Iron Curtain of Scientology."
Tony Ortega, former Editor-in-Chief of "The Village Voice," talks about the similarities between Scientology and Paul Thomas Anderson's new film, "The Master."