Hmmmm. Government very interested in 3D printed guns. Think of it as an inverse relationship: As the cost of 3D printers is plummeting, the government’s interest in the printing of guns is skyrocketing. (By the way, if you don’t know about this incredible new technology, check out not just this article but all the others at 3DPrinter.net.) It’s un-freakin’-believable.