You can build a 'cruise missile' right now in your garage pretty easily, being able to print one shouldn't be any scarier than that. The scary part is the warh

You can build a 'cruise missile' right now in your garage pretty easily, being able to print one shouldn't be any scarier than that. The scary part is the warhead, and you don't just print that from a spool of plastic. If someone can make such a thing for a printed cruise missile and do mean stuff with it, they can surely stick it in the back of a pickup truck too.