Some guy in a fedora and freebsd t-shirt hanging around sleazy bars downtown waiting for his flipped FBI agent to come around and drop him some new juicy goss on the latest... TF2 hat update? Sounds legit
Well, Wired is a business, and cybercrime stories are pretty good business, and a lot of people the FBI might want to reach (and let know that they're on to your games, criminal scum) probably read Wired. It would be a mutually beneficial relationship, and this isn't exactly bad press for the government, so it might be more legit than it sounds at first glance.