hey, what about this:
RELEASE: PR7380-16 June 2, 2016
CFTC Orders Bitcoin Exchange Bitfinex to Pay $75,000 for Offering Illegal Off-Exchange Financed Retail Commodity Transactions and Failing to Register as a Futures Commission Merchanthttp://www.cftc.gov/PressRoom/PressReleases/pr7380-16Is Finex accepting US clients? That's dangerous.
I think you are on your own here. Remember that Bitfinex is not in the US jurisdiction, neither de juro nor de facto (unlike European banks, for example). So the CFTC may do what they want, in their impotent fury they can even cancel the law of gravity if they please (or go after the clients from the US according to the cynically-called "Consumer Protection Act", lol)...
Bitfinex seems not to care a fuck about their "orders", and the US gov-gov in general
I wish the best for them even because I trust them with some of my coins and $. Still, there is a reason why most of worldwide banks do not accept US citizens, and maybe some of those reasons applies to exchanges too. Or so it seems:
etc.