Cryptocurrencies, like Facebook's Libra and bitcoin, are under fire by some big names

3:08 PM ET Fri, 12 July 2019

Cryptocurrencies, like Facebook's Libra and Bitcoin, have come under fire by some big names, like Federal Reserve chairman Jerome Powell and Representative Maxine Waters. "Libra raises serious concerns regarding privacy, money laundering, consumer protection, financial stability," Powell told the House Financial Services Committee. President Trump tweeted that he wasn't a big fan of cryptocurrencies, and billionaire Mark Cuban said Libra "could be dangerous."