2. some time first lady, senator/congressman may help to inquire the case, but USCIS/FBI explicitly say that FL/ Senator/congressman can inquire, but can NOT force them to expedite name check
3. only Court order can force USCIS/FBI to do something, see name check lawsuit article 這裏
4. not necessary your material was lost, maybe just wait for name check, and happen to be nobody take care of your name check assignment