This could be a preview of what we will face if the tea parties spread and grow and he US people try and take back their country.
There will probably be two tactics:
1. Ridicule and marginalize them. The mainstream media, as well as tools like George Will, Hugh Hewitt etc. will gladly help with this.
2. Obama's "civilian defense force" was known by other names in the commie countries of the old Soviet Union. In Cuba today they are known as "Committees for the Defense of the Revolution". However they are know they spy on individuals and groups for the government.