Additional.

Although satoshi nakamoto found have citizenship America, if we talk about regulation, I think nothing will change. This of supposing.
Regulations that have been issued, to revoke them need a long discussion and mutual agreement. While the government has agreed to regulation it for the sake of keep sovereignty of the country's currency. So, I think, what for waste of time to long discussions just for the same thing.

I talk about supposing the bitcoin is use as a legitimate currency as a currency of exchange.