The fact that the agent's name and position are already publicly available might suggest that AntiSec simply used his name to appear more credible.

Or they targeted him because he was publicly known.

Yes, I know, saw his LinkedIn profile too. Not that either of those could be faked but lets not go there. I was agreeing with the comment that this denial was a very weak statement from the FBI. There were specific facts in the accusation which the FBI chose not to directly contradict, which I found somewhat odd on their part. That doesn't help the FBI convince me that they weren't caught with their floppy out if you know what I mean.