Geeze, Australia doesn't have this or that amendment to the constitution - Guys we ARE NOT a state of the USA. We have our own laws, and currently (legal) gun ownership is restricted. Frankly I believe that Australia is generally a safer place since the Howard government restricted legal gun ownership. Yes I know I'll be modded down and adversely commented on by those of you in the US who have the "right to bear arms", but frankly I don't give a flying fuck about your rights - I'm only interested in my rights and the safety of me and my family. So yes 3D printed guns should be banned here in oz. And I know that I'l get the storm of "yes but the crims and bikie gangs can get guns". Yes they can, and as far as I'm concerned they can go and shoot each other.