You can't take a gun, put it into a machine, push a button, and have the machine make you a million guns. If you could, gun control would go from difficult and incomplete to downright impossible. That's how encryption is now.
Are you familiar with Defense Distributed, DEFCAD, and the Ghost Gunner? That stuff is already here. Every time I hear someone talk about banning "high capacity magazines" I think how trivial something like that is to 3d print...
I've heard about them a little. This stuff is definitely getting easier, but there's still a world of difference between the difficulty of replicating a gun and the difficulty of replicating a copy of crypto code.
