Back to the 'Good old days' of Hoover's FBI, where they sent guys like this into every right-wing organization they could in the Kennedy and Johnsom years, from the Birchers to the Minutemen ('Minutemen' of that time and their near relations - very heavily armed gun nuts mostly, no connection to the current incarnation by the same name, more like the militias of later years), and you could be assured that if anyone was talking about committing criminal acts, especially National Firearms Act violations, and trying to involve someone else, that guy was the FBI or then-BATF agent or informer. Memories, memories...