More seriously, I went to law school for the express purpose of working in indigent defense. I've never been happy with the criminal justice system, which is arguably at its worst here in Louisiana, and there's a surprising amount of opportunity at the office at which I work. The goal is policy work ten or fifteen years down the line, but I deal with enough well-meaning but ignorant "experts" to realize the value of actually practicing line defense before trying to make substantial changes to the system.