https://www.cnbc.com/2017/12/05/novogratz-worried-surging-bitcoin-price-may-attract-government-regulation.html >Galaxy Investment Partners CEO Michael Novogratz said Tuesday bitcoin will be difficult for governments to crack down on. >"I've got concern that if price movements go higher we're going to get more regulation," Novogratz said. But "I think it's hard to shut down. ... I don't think that's a probability."