Michael Barr, a former Ripple adviser nominated by President Joe Biden to run the Federal Reserve’s oversight of the U.S. financial sector, sees cryptocurrency technology offering “some potential for upside and also some significant risks,” he said during a Senate hearing Thursday. While his time on the board of advisers at Ripple wasn’t raised during his opening testimony at a Senate Banking Committee hearing on his confirmation, Barr – now dean of the public policy arm of the University of Michigan Law School – was asked about his thoughts on current troubles in the crypto industry.