You can put together a decent shop for about the same cost as this guy's fancy printer and make practically any gun you want. The only reason few people do is because factory guns are still relatively easy to get. Even with no shop experience, you can learn enough in about a month.
More than anything, I suspect this little plastic gun caused a stir because of dictators and slave owners around the world worried about their subjects getting one. Just like the original "liberator" it is only good for assassinations and sneak attacks. They probably frantically called Obama to “fix it”. This is why it cites “defense trade controls”.
I think Obama is afraid history will repeat itself such as Lincoln and Booth at the theater, and we all know how much Obama thinks he is a reincarnated Lincoln.
So its just a shot in the dark so to speak that Obama fears an assassin using a printed gun against him, and so he just hits the panic button, plus he needs a diversion from Bengazi.
Not yet. Now how can I hide my metalwork machines? 3D printers don't weigh many hundreds of pounds and are easier to hide.
I recall an account of POW’s in a Japanese prison who built a lathe out of a piston and some other scrap they scrounged. Had to take it apart when they were moved. They occasionally made parts for the Japanese to trade for food and other necessities as well as parts for their own use. It had a swing of around 10 inches.
Even with no shop experience, you can learn enough in about a month.
***With this 3d printing technology, you just have to learn how to load up a file and push a button.