Last month Alt-Market.com founder Brandon Smith warned that Bitcoin may not be all that it's cracked up to be in terms of its purported anonymity:

For years, one of the major original selling points of bitcoin was that it was "anonymous." It always surprised me that so many people in the liberty movement bought into this scam. Surely after the revelations exposed by Edward Snowden and organizations like Wikileaks, it is utterly foolish to believe that anything in the digital world is truly "anonymous." The feds have been proving there is no anonymity, even in bitcoin, for some time, as multiple arrests using bitcoin tracking have indeed occurred when the FBI decided it was in their interest. Meaning, when the feds want to track bitcoin transactions, they can, and it does not matter how well the people involved covered their actions.