Ross Ulbricht was a quiet nerd -- an Eagle Scout who never cursed. Then he became a libertarian, and he decided, "I want to use economic theory as a means to abolish the use of coercion." By coercion, Ulbricht meant force. He viewed laws against drugs as coercion -- government force that stops people from living the way they want. So he created a website called Silk Road. Silk Road let people buy and sell contraband -- mostly drugs -- using bitcoin. The site became successful quickly. It soon carried a billion dollars in transactions. Because Silk Road didn't use...