Facebook ban on bitcoin ads is the latest in a very bad day for cryptocurrencies

Facebook ban on bitcoin ads is the latest in a very bad day for cryptocurrencies  CNBC How Bitfinex, Tether are raising eyebrows in the cryptocurrency market  MarketWatch US regulator subpoenas cryptocurrency platforms Bitfinex and Tether -source  Reuters memorandum - Tether  Tether US Regulators Subpoena Crypto Exchange Bitfinex, Tether  BloombergFull coverage

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