Just a reminder that there’s a morally ambiguous side to every disruptive technology. Just as the Internet made information free and opened up the world to a whole new kind of economics and commerce, so it opened up the world to cybercriminals and black hat hackers. We’ve already seen 3-D printed brass knuckles and rifle components. There’s no telling what we’ll see next, but we’ll take the bad with the good. The upside inherent in 3-D printing technology far outweighs these kinds of negative implications.