Which kindasorta brings us back to my question: who would be giving the orders? If both civil and military authorities are told to stop people from going up "A" street let's say, they, based upon their prior training and experience, might take very different actions to prevent such passage.

I am not saying that something like Bruce Willis in "The Siege" would occur, and I doubt that something like the .30 machine gun nests of the first Watts Riot would occur, but different training is different training...