I'll read Josh Blackman in a moment, so forgive me if I say something stupid or something he said
There is no way to regulate these files/3D printers, CNC machines the way they intend/want. It is, IMO and IANAL, a Minority Report fiction to impose this type of certitude in regulating a) the internet/information and b) a machine that does not have the ability to understand the end user and then extend that knowledge adeptly into the matrix of all current laws it to all laws.
This will be an either/or choice between a future of North Korea or a future of freedom. Go ahead and pull your coins out and begin flipping