Fed chief calls for Facebook to halt Libra project until concerns addressed

U.S. Federal Reserve Chairman Jerome Powell said on Wednesday that Facebook's plan to build a digital currency called Libra "cannot go forward" until serious concerns are addressed, comments that pressured the project and dented the price of the original cryptocurrency bitcoin. "Libra raises many serious concerns regarding privacy, money laundering, consumer protection and financial stability," Powell said during his semi-annual testimony on monetary policy before the U.S. House of Representativ