"...in the Plame leak..."
I still don't understand why there was a grand jury investigation in the first place. The law they were citing to do the investigation was for covert operatives in FOREIGN COUNTRIES. Plame was in Langley, VA...besides which, everyone...her neighbors, et al, knew she was CIA; she was NOT in a foreign country!
Even so, if Libby had just told the truth each time he was questioned, they wouldn't have had a leg to stand on.
If it weren't for the Republican Party and Abraham Lincoln, Langley, VA, would be in a foreign country (to the U.S.). Of course, the CIA headquarters wouldn't be located there.