Just to second the advice from Slowman; my mothers green card renewal was "lost" during the government shutdown in the mid 90's. After a call to our state's senior senator his staff got the paperwork "found" and processed remarkably quickly.
Secondly, if I remember correctly you are a professor/lecturer/instructor at a university. Most universities have a person if not an office set up to get green cards for grad students profs etc., and IIRC there are different programs for academics, so I would find out if your university can take care of this for you.
Secondly, if I remember correctly you are a professor/lecturer/instructor at a university. Most universities have a person if not an office set up to get green cards for grad students profs etc., and IIRC there are different programs for academics, so I would find out if your university can take care of this for you.