I don't believe that's the case at all. Rove's lawyer claims that Rove disclosed nothing concerning Plame to Cooper. Indeed, some months ago, Rove waived his confidentiality with all reporters. Cooper and the rest are free to reveal any and all discussions they have had with Rove.
It is far more likely, however, that it was Cooper who told Rove about Valerie Plame, her employment at CIA and her relationship to Joe Wilson.
Rove's lawyer today admitted that Rove talked to Cooper about Wilson, and told Cooper that Wilson's wife had suggested sending him to Africa.
So, he apparently admits that he talked to Cooper about this. But there is still no evidence that he told Cooper she was covert.
I don't know why our side persists in trying to muddy the waters on this. It's very simple: He did not tell Cooper she was covert. That is what the law prohibits. All of these other defenses just confuse the issue.