A U.S. Justice Department logo or seal showing Justice Department headquarters, known as "Main Justice," is seen behind the podium in the Department's headquarters briefing room before a news conference with the Attorney General in Washington, January 24, 2023.Kevin Lamarque | ReutersFederal prosecutors have charged two men in connection with a sprawling cryptocurrency investment scheme that defrauded victims out of more than $650 million.The indictment, unsealed in the District of Puerto Rico, ...