Tripleoption,

I agree it is COIN like, and that street gangs (1st, 2d, and 3d generation gangs) present growing challenge that we can't simply "arrest our way out of; " however, since you brought up "underlying causes," in your view what are the underlying causes that lead to these gang problems, and how can the police or community at large address them? I realize it is often different in each case, but if you're familiar with a particular problem set I would like to see your views on it.