In yet another example of the Internet is bringing back the Wild West days of crowdsourced justice, the FBI has asked for anyone with any information to jump onboard the hunt for the person or persons behind the Boston Marathon bombing. The Internet was only to happy to help, with a Reddit subthread peopled by amateur detectives joining forces to crack the case. Only a day in, and they’ve actually turned up some intriguing leads. This sort of online vigilante justice is becoming increasingly common—it was largely responsibly for outing the Steubenville case. But, of course, it could lead to any number of innocent people’s lives getting ruined—as may have already happened, as the early, ugly, erroneous reporting of a Saudi national in custody …