I think when people say that the blacks control a certain city they mean the violent, nitty-gritty street-level crime, not on a Mafia/organized crime level. What's left of the mob, from what I've seen, are pursuing more sophisticated, lucrative crimes and aren't as much involved in the gritty cowboy crimes of decades past because these days they are high-risk, low-reward. The Goodfellas days of hijacking trucks and stealing plane cargo at gunpoint are over. Those type of crimes made the mob very visible and resulted in steady arrests.