"FBI snitches have long come under scrutiny for committing crimes while working as government informants, most notably Whitey Bulger and Stephen Flemmi, Boston gangsters who committed more than a dozen murders while on the federal payroll. Roy Frankhouser, a longtime neo-Nazi and fixture on the far right, signed on as an FBI informant to feed the bureau information on Black nationalists and left-wing militants in the 1970s. Mike German, a former FBI agent who spent years infiltrating white-supremacist movements in the 1990s, points to Bulger's case and Sutter's years of satanist proselytizing as exemplars of "gross mismanagement" by the country's premier law-enforcement agency. "The confidential informant has been mismanaged for decades " that's a very fraught enterprise, the idea that you're going to go out and find people with firsthand knowledge of criminal activity and to the extent they're cooperating with you, it's because they're betraying their colleagues," German tells Rolling Stone. "Where the FBI gets in trouble all the time is ignoring the crimes the informants are committing."

Says who?