...WEX is the reincarnation of BTC-e, who got indicted and shut down earlier this year. bitfinex owns tether and both got blacklisted by the banking system --- one has to wonder why.
...
Interestingly, the two exchanges that you mention are actually deeper entwined than you think.
https://twitter.com/btcecom/status/853142083527245824?lang=deTake a look at this tweet from April. This was only a few days before US law enforcement shut down BTC-E.
It is entirely possible that the law enforcement agencies of the US are already investigating Tether. Especially,
because they can always maintain that Tether can be used for money laundering.
I would be very cautios with the reincarnation WEX as well. It is possible that the US are using it as a kind
of "honeypot" to catch money launderers or hackers that sell their ransomware proceeds. After all
BTC-E used to be the main destination for these kind of clients.