Having visited several prisons in my state over the last 12 years, bought books and bibles, talked with inmates and one in particular, chased a case up to SCOTUS, I believe I can talk on this topic rather well. One of the issues which bothers me is the amount of justice applied through plea bargaining. It is a fast and easy way to minimize court loads and maintain a flow of live ones into the system. It is efficient and at the same time applies the law with a minimum amount of Justice (if it ever sneaks through). There is more to this and I will talk about it if you are interested. Atlantic Monthly has a good read on this topic which I would recommend.