It sounds like a Hollywood movie: A 29-year-old in San Francisco calling himself "Dread Pirate Roberts" masterminds an online black market for drugs and other illicit goods, allegedly hires a hit man to take out someone threatening to expose him, and the FBI swoops in and arrests him at a local branch library. That's the story of Silk Road, a sort of eBay for illicit goods, which only accepted the open-source electronic money, Bitcoin. We discuss the Silk Road bust and the "deep web" of sites that give its users anonymity, and what implications this will have for Bitcoin.