The FBI Agent, Bob, decided that he could get recognition by targeting militias and white supremacist groups.  He didn't know any, so he hired a guy off the street, Tommy, who in turn hired a paid unwitting flunky underling, to go with him to, um, Arkansas to the small town of Eloy City where people supposedly wanted to be left alone.  It was slim pickings in that town until he met a guy, John, who also wanted to talk tough about blowing things up.  This guy would be a great target.  This guy talked as tough as Tommy did.  Tommy could keep the federal gravy train coming his way and FBI Bob could write lots of fancy reports to get promotions.