I don't see your point, JohnSC. Of course there are huge potential benefits of 3D printing, in areas like medicine, and some are being delivered now. That's fantastic, praiseworthy and should be encouraged.

But that has no bearing on whether something needs to be done about regulating and managing potentially harmful and illegal items which can in effect be distributed this way. And since I last posted on this thread I understand the US government has said put these plans on the internet may breach US export regulations, as I remarked earlier