Enter Silk Road, a place where anything from heroin to ecstasy pills can be mail ordered with "bit coins," an anonymous internet currency Gawker calls "the online equivalent of a brown paper bag of cash." As a darknet site, Silk Road is inaccessible to most internet users who lack knowledge of TOR clients which helps hide a user's identity and keep secret the sites they visit and communications they send.
Though the site has only been operating since February, Senator Chuck Shumer (D. NY) has called for the DEA and Justice Department to shut down Silk Road immediately. Mailing illicit substances through the US postal system is, of course, illegal - but the article attests products are very well hidden in packages, citing a software developer who successfully purchased 10 tabs (100 micrograms) of LSD online. Further, one of the developers of Bitcoins notes they are, "not as anonymous as the denizens of Silk Road would like to believe." and that, "law enforcement could use sophisticated network analysis techniques to parse the transaction flow and track down individual Bitcoin users." Read the full article.