Lol at Katrina the police and guard were going door to door confiscating arms of occupied homes in blatant violation of the second amendment. There is a video if a guardsman bragging about something to the effect 'hoping he doesn't have to smoke someone coming around a corner."

As it turns out when you send a force trained only to kill and subjugate, that's what they do. A few guardsman stood down but most did not.