An infantry BCT with support slices runs to about 5,000 troops, only about half are actual boots and track on the ground to go toe-to-toe with orgnaized, armed opposition even then. Having one designated for immediate availability to Northern Command is an excellent idea for dealing with consequences of a Katrina or 9-11 attack, and ridiculously inadequate to operate in more than a single major metropolitan area at a time. Of course it's not like the DUmmies have the remotest idea of how military operations work, what kind of unit capabilities exist, or that they understand anything about that whole "Oath" thing.