There will be a black market with or without crytpo just as there is murder with or without guns and there is obesity with or without forks.... Our judicial system is WAY too lenient for us to focus on so-called "tools" of crime. IOW, before you talk to me about guns first wipe that smile off Jared Loughner's face with a noose. Then you'll see guns never were the problem in the first place. Bitcoin. Use it. Live it. Love it.