**Cryptocurrency News:**
- Bitcoin and altcoins experienced significant volatility on Friday night following a controversial Wall Street Journal report that was immediately refuted by Tether CEO.
- The U.S. federal government has reportedly launched an investigation into the company behind the world's largest stablecoin for allegedly violating anti-money laundering and sanctions regulations.
- Tether CEO Paolo Ardoino said there was no sign of an investigation and called the WSJ article "a rehash of old rumors."
- BTC prices fell from $69,000 to $65,500 on the news, but have since partially recovered to $67,000.
- Total market liquidations reached $405 million in a day, with altcoins accounting for the bulk of that amount.