US Representative Sean Casten, Democrat of Illinois, along with lawmakers Stephen Lynch, Brad Sherman, Bill Foster and others, sent a letter to the Treasury urging it to investigate illicit financing through cryptocurrency mixing services, particularly Tornado Cash. "Despite the sanctions, Tornado Cash remains online and continues to function as a decentralized smart contract," the lawmakers said in the letter. The US Treasury's Office of Foreign Assets Control (OFAC) announced in 2022 that...