Hehehehe I don't think the blue hats are up to the task of disarming us. They have a hard enough time as it is in countries to poor to practice or outfit in the latest gear and gadgets. I'm no expert, but I think that the second most well equipped army in the world has got to be the American public. Some citizens have better and bigger guns than most PDs!
And who would enforce this? The cops, our military? Yea right, of course they did in katrina, but nationwide? You'd have absolutely no room in any jail because not many would voluntarily hand 'em over, they would need to systematically search every home, nook and cranny in the US. Doesn't seem feasible to me.
I'm not saying it couldn't happen though, but if tried I can definitely see a civil war going down. Lol, Ted Nugent and the roughriders holy shit!