So the prosecutor is saying because he can't prove there was a crime he is charging someone with preventing him from proving there was a crime.
Talk about blaming someone else.
Seems to me the only proper answer to a grand jury is a 5th amendment stateemt to all questions.
Fitz is saying "it's Libby's fault that I failed".
I'd bet a dollar to a donut that Fitz was one whiney kid.