What is your point. Libby said he found out from reporters. If he did, name them, and tell me why he bothered to ask the CIA and state departments who Wilson was and why he was sent to Africa. Tell me also why he conveniently forgot that they had reported back to him and to Cheney? Tell me why he was able to remember hearing about it from a reporter, although he cant remember who, and conveniently forgot that he had learned four times before.
Maybe he didn't ask who he was, maybe he asked who the ambassador was who was sent to Niger. And why he was sent. Besides, when you ask an official question, you don't furnish them with the answer, even if you know it. Maybe he wanted to be sure that the CIA had, in fact, sent him and that it wasn't just someone inflating the truth. Just because you know Wilson, a former ambassador, is married to a CIA agent, doesn't mean you know that the CIA sent him to Niger.
Besides, unless they asked him a specific question (i.e. did you ask the CIA about them, did they report back to you) he shouldn't be divulging conversations regarding the CIA and/or discussions of official business within the WH.
Now, if they asked him specifically, and he lied, then that's a whole different thing. But, I don't think they asked him that.