Cops kind of embody the best and worst of us. I mean, they are as brutal as you see in the Rodney King case. And they are as good as the guy who sees somebody in distress and takes care of them, takes them to a hospital, is a father in a moment of need. Some of the most remarkable guys I've come across have been cops, and some I could just pin against the wall with their sexism and racism and reactionary attitudes. Yet there's a visceral quality to their lives that's fascinating.