Can you imagine, if in your job you could bring someone off the street who has done all sorts of heinous things but who could guarantee a successful outcome on whatever project you were working on? That's what the prosecutors and fbi guys are doing by giving these individuals deals in exchange for cooperating. Just too damn lazy and egotistical to do their damn jobs. This would never fly in any other developed country. BUt in the land of the ignorant and home of the stupid everything is fair game.