Rove's lawyer now won't say if Rove knew Plame was a covert agent

I just assumed all along that it was a given they were claiming Rove didn't know. I had no idea his lawyer was refusing to say. That's bad, as it suggests Rove did know, otherwise why wouldn't he at least let that leak. This is big, as that's one of the bases for the criminal action, Rove knowing Plame was covert.