Roubini exposes Bitcoin manipulators: One of the biggest scams ever, price should be 80% lower

NYU professor Nouriel Roubini offers a dire warning about the price of Bitcoin which he says has been manipulated by what he calls a criminal currency exchange Bitfinex in a classic "pump and dump" scam. Roubini reckons the Bitcoin price has been pushed at least 80% beyond its true value.