U.S. Regulators to Subpoena Crypto Exchange Bitfinex, Tether
So, how does this work legally?  Bitfinex isn't a U.S. based company and doesn't work with U.S. citizens.  The article says where it's based is unknown.  Does the CFTC have the authority to subpoena them?  Is it because they're claiming Tether is USD pegged, so they gain authority because of their use of the dollar?Honestly just a curious question.  (I'm not looking for snarky answers to the effect of "world police".)