This is a very good point.
The only way Libby can be charged with lying to the Grand Jury is the fact that he did learn (earlier than he said to the GJ) that Valerie Wilson did, in fact, suggest sending Joe Wilson on the trip to Niger.
The facts of the charges themselves imply Wilson is lying to this day about his wife's role.
This is a basic fact that the media cannot ignore any longer. 60 Minutes conviently left this out last night for example.
The media will never even acknowledge that Wilson is not truthful. They ignore the 9/11 Commission Report when it's convenient and drag it out as gospel when it fits their agenda for Bush bashing.