look at the zip code level is the impact of segregation on our law enforcement. in any segregated society, the way it has worked, whether it was south africa or here was if crime happens in the ghetto, that s a problem to fixing itself. if you kill somebody outside of your area or outside of south central, then you got a problem because if you kill somebody in, that s okay. and that was with us until very, very recently so part of what happened here with cops and come com stat was a good thing. but you have to go one step further. because the other legacy of segregation is that the cops fear the people in the neighborhood. and when you actually put cops on the beat, when you require them to be part of that neighborhood. when you do what bill bralten has done in los angeles and respect the people in the neighborhood and get to know them, crime false further faster.