You have to remember the filing was dated in February. However, if we are to believe the press reports, Fitz decided to limit the scope of Miller's Testimony. Testimony which could have been regarding the "Holy Land Foundation".
The thing that I am not clear about is why Fitzgerald met with Bennett prior to Miller testimony.
This certainly would merit national security interest and "graveness". And wasn't it Fitzgerald who was investigating this case in the first place when Judy tipped of the Holy Landers about the warrant?
Nobody seems interested in the Holy Land Foundation angle but it was a Leak was it not, and wouldn't you just love to know who really tipped her off, who was giving her information? Sounds much more like a national security risk than the Non-outing of non covert agent. I guess we will just have to wait and see but I like the possibilty.