If the US people don't wake up they will be treated as cattle. So if the people don't wake up and keep grazing and living on the lush green grass, then you only can try to protect the ones that are awake.
Folks I know in the Guard and regular military have stated they would never fire on or attack civilians unless there was some freaky circumstances.
http://www.youtube.com/watch?v=kf8trl69kzo&feature=youtube_gdata_player
It was nice of the police to let them stay in their own homes!