A Digital Underworld Cloaked in Anonymity (on Silk Road, bitcoin, etc.)

``o sooner was the old Silk Road shut down than a new, supposedly improved Silk Road popped up. Other online bazaars for illegal guns and drugs are thriving. And the Dread Pirate Roberts -- the old one, a new one, who knows? -- is back, taunting the authorities. (The pseudonym is a reference to a character in the film "The Princess Bride" who turns out to be not one man but rather many men passing down the title.)''