No, perjury and obstruction of justice are intentional. Prosecutors and the jury would only charge him if they thought he purposely lied.
Or Libby has been "over-charged" in order to get him to plea to the lesser of the counts.
nah, they would get him if they wished he had lied. fitz has a history of nasty tactics with witnesses in the ryan case.
That is incorrect. A gj can indict if there is SOME evidence that a person lied (files on a machine that contradict sworn testimony), and the prosecutor tells them they should. They can believe that he did not, or had a faulty memory, and still indict, believing it is up to a jury to decide.