So do we conclude from this? 1) She was a covert agent who had been compromised or 2) that the DOJ upon dismissing that claim turned up something else or 3) that they wanted an independent confirmation because of the politics involved?
2 & 3
Any of the three are posibilities really. Looking at what's going on, who's doing what, what's been going on as far as who's being called to testify, and what the various people leaking are saying, I'm guessing #1. But no one really knows for sure of course. Guess we'll find out soon enough.