In addition to what Allan has said, the government has also enlisted the assistance of utility workers, cable/satellite repair people, emergency responders, etc. (people who regularly go into the homes of citizens) in their quest to root out “terrorists.” They’ve been asked to report “suspicious findings” when entering people’s homes, and this includes things like “Tea Party” and “Occupy Wall Street” signs, paperwork, etc., as well as any kind of “anti-government” posters, pictures, etc. They are also supposed to report the existence of visible weapons, or the suspicion of weapons possession. In addition to this, some have received very specific training in what to look for and how to handle occupants if they show any kind of resistance to their inquiries and “informal” searches. They have been preparing for revolutionary actions for some time now. Much of this has NOTHING AT ALL to do with “foreign terrorists.”