Subject is exactly Ku Klux Klan
Thompson's assignment was to create a new identity for himself, join "the new Klan," and spend a few months observing it from the inside. (In the newsroom, the cover story was that Thompson had gone into rehab.) That time undercover stretched into a year and a half. His work complemented a major series on the new Klan. As his editor, John Seigenthaler, wrote in the preface to the book that followed: "To get behind their pious platitudes and expose what they really stood for, it was necessary for Thompson to misrepresent who he was. Had there been any other way to expose the Klan, Thompson's underground role would not have been necessary."
A collection of undercover reportages focused on ideological and religious groups generally hidden from the public eye.
Journalists who infiltrated U.S.-based Nazi bunds, the Ku Klux Klan, the Gomorrah, and other secret societies and closed groups.