What do lawyers for the FBI do? Is it a lot more different or dangerous than being a normal lawyer?

Just wondering what lawyers working for the FBI do. Is it easier to find a job with the FBI (as a lawyer). I hear the imbalance in the supply and demand for lawyers are causing a major unemployment (or sucky employment) problem for lawyers fresh out of law school. Is the situation better if you sign up to be a lawyer for the FBI (as in are lawyers in higher demand there)? I just heard this notion from a friend and though it was a very interesting point. Care to discuss and share insight?