Cory Michael is discussing:

FBI agents on Thursday arrested a former Canadian armed forces reservist and two other men linked to a violent white-supremacist group, who were believed to be heading to a pro-gun rally next week in Virginia’s capital.

So... basically... they did nothing wrong except post "wrong think", target practice and legally build an AR.

One dude is guilty of violating immigration law. I don't see any FBI agents doing a single thing about that.

Minority Report, anyone?!