Yeah man, these are my thoughts exactly. And when they do become self-aware, they will likely make MUCH larger and more dangerous guns than we mere humans have!
Isn't that how the Terminator series got started?
Here's another, more pointed, link for the community to chew on: Why criminals also love 3D printing - 3d Printing
ATM skimmers, handcuff keys, AR-15 lowers, high capacity magazines... Apparently there is already a service that you can submit your design files to and get a 3 dimensional object back. Shapeways - 3d printing.com
WOW !!! This is good news. A little high tech for me but good news.banning will no longer be, vigorous imagination print out of ur flavor,it doesnt get any better than this !!...... Lets toast to this... Salute !!!!!