It appears there might be a new notice from Bitfinex out that refers to legal challenges with the US government, specificlaly related to the existence of ICO tokens.
The exchange explained that the decision follows a recent investigation by the U.S. Securities and Exchange Commission (SEC) on how tokens issued by way of an initial coin offering (ICO) may be considered securities.
I wasn't aware of specific investigations into ICOs...anyone else heard of such investigations?
Yes if you look at the announcement there is a SEC document that specifies their reasoning. US investors have to $1M USD in assets before they can get involved in IPO's so the SEC spun that to include ICO's.
After several ICO's have had millions of dollars invested in a single day, Wall Street is very scared.... So the SEC, their puppets, had to do something about it.