In addition to what lazy mentioned, I want to add a few things.
Thanks Slow_CIS.
I think the main points in AUSA's brief are:
1. USCIS/FBI have absolute authority for how and when to process the application. Even the pace of processing is under their descretion.
2. USCIS/FBI have been having "some actions" on plaintiff's case, such as collection of FP, finishing all the other background check other than NC. It is therefore different from "inaction" and therefore subject to 1252
3. Plaintiff's name, somehow, fails into less than 10% cases that need extensive review, which is FBI/USCIS's descretion.
4. Since 1252 applied, APA becomes nullified.
I can write responses to these points. The difficult part for me is the citation of other cases. I will use lazy's reply brief as model but his citations are all from the 1st Circuit. I guess I should use 7th Circuit instead but hard to find good cases. By the way, do you friends really think the writing is important for a case like this? It seems to me that the Judges make their decision on their own mind that do not depend on what you wrote. They pick up what they want from the parties' writing and just ignore what they don't want. So it seems the lawsuit is also a kind of lottery, like the GC itself. What do you friends thinks?