" And what was the principal implication of coupling? That law enforcement didn’t need to be bigger; it needed to be more focused. If criminals operated overwhelmingly in a few concentrated hot spots, those crucial parts of the city should be more heavily policed than anywhere else, and the kinds of crime-fighting strategies used by police in those areas ought to be very different from those used in the vast stretches of the city with virtually no crime at all. "

― Malcolm Gladwell , Talking to Strangers: What We Should Know About the People We Don’t Know