So what bitcoin FUD are you expecting next seeing that the atomic bomb in the arsenal has been used up (china ban) and did minimal damage? What is left to suppress the price? Pretty funny to see the wall street journal panicking & resorting to BS articles now.
I think it would be ban of exchanges in the American soil...that can create a very dramatic and possibly crippling effect on Bitcoin though it does not mean that Bitcoin will die. However, if things would be the same as they are now, there is no reason why USA will be banning exchanges considering that in my opinion this kind of business is now contributing to the tax coffers of the government. It would be like shooting your own feet.
Now another thing that can make Bitcoin go crashed to the ground if is the Japan market would be closed in the same way that China banned the exchanges and the holding of ICOs. Of course, that can be a remote possibility since Japan has fully embraced everything about Bitcoin and had it not been for this country cushioning the blows from China I don't think Bitcoin can be back surging right now. We have many things we have to thank Japan for.