Mark. History has a way of repeating itself. And those who fail to learn history are doomed to make the same mistakes. I have said before if you start taking away, in this case AR15's, then what is the gun of choice for the political hacks to go after next. Once they know they can violate a right what is to say they will not violate a right that is near and dear to you. Like your freedom to speak, your freedom to travel,etc.  The framers and founders went through tyranny. That is why they put safe guards into place in an attempt to not have it happen again. As for registration. Adolf Hilter did that in the name of safety and then later confiscated. He who trust the government for all things in life is in the company of fools.