Bitcoin dealer US authorities have filed criminal charges against two operators of a Bitcoin exchange which enabled its users to buy drugs and other illicit goods on the Silk Road underground website. http://mobile.news.com.au/technology/online/bitcoin-dealers-charged-robert-faiella-and-charlie-shrem-with-money-laundering-in-relation-to-silk-road-website/story-fnjwmwrh-1226811649930