Book excerpt: Hugh Urban tells the real story of Scientology from its cold war-era beginnings in the 1950s to its prominence today as the religion of Hollywood's celebrity elite. Urban paints a vivid portrait of Hubbard, the enigmatic founder who once commanded his own private fleet and an intelligence apparatus rivaling that of the U.S. government. One FBI agent described him as "a mental case," but to his followers he is the man who "solved the riddle of the human mind." Urban details Scientology's decades-long war with the IRS, which ended with the church winning tax-exempt status as a religion; the rancorous cult wars of the 1970s and 1980s; as well as the latest challenges confronting Scientology, from attacks by the Internet group Anonymous to the church's efforts to suppress the online dissemination of its esoteric teachings.