The U.S. Justice Department is looking into whether the price of bitcoin and other virtual currencies are being manipulated, according to a report in Bloomberg that referenced four unnamed sources for the information. Still in its early phases, the criminal probe will bring in other agencies, like the Commodity Futures Trading Commission (CFTC), a regulator that oversees bitcoin derivatives, sources said. On spot markets, like GDAX, Poloniex and Bitfinex, where cryptocurrencies change hands immediately, the price of bitcoin can vacillate wildly in a matter of hours. Starting in early 2017, the price of bitcoin ballooned from $1,000 to a record high of around $20,000 in mid-December. Currently, the price now sits in around $7,500. Unlike in Japan , where virtual currency exchanges are subject the same rules and oversight as any other financial institutions and are required to register with the government, in the U.S. and other countries, cryptocurrency exchanges are still largely