[dpratt]

There is no way this would ever even pass initial consideration at the Federal level, in that there is no incentive for the Federal government to limit the weaponry available to it's law enforcement apparatus. They would see such a law as containing no upside for the government itself, and therefore it will be, at best, laughed out of committee and more likely any Congressman or Senator who proposes it will mysteriously find that a lot of his or her donors are suddenly turning on him.