I think we're opening another can of worms. No. I don't think we need more guns on the streets regardless of where they come from. Can we stop it? Can we control it? What would the punishment be? How many gung ho gun owners would print and resell. Could this be easy enough for children to print guns since children are much more savvy at anything relating to computers. There's no end to this new fast, growing technology and I don't think our minds have grown at the same rate.