incrypted communications, vehicle support, operating in uniform and platoon-sized strength. what they were describing is essentially was an fbi hostage rescue team or national guard platoon or an atf tactical force. they were practicing to kill federal troops. when you have people with that mindset, there are two big worries. one is that they will interpret some ambiguous act as an attack and do what they perceive as defends themselves. the other, within their midst there grows up a lone wolf who believes the rhetoric, keeps hearing the warnings, keeps practicing and can't stand it anymore and goes out own acts. >> they don't trust the government. who is it that can go to them and talk to them? is there a middle ground, or do you have to watch them and react? >> you really to have to watch them. the lone wolf bart describes is the most difficult. tim typically what will happen is the group, itself, expels him. there's no one around him to trigger law enforcement to know you have a real dangerous