The Atlantic, October 3, 2011 by Benjamin Schwartz
http://www.theatlantic.com/magazine/archive/2011/11/police-and-poetry/8691/
New York’s sustained, broad, and deep drop in violent crime occurred despite the city’s glaring economic inequality, its stubbornly unyielding poverty, educational deficiencies, number of “fatherless high-risk youth,” and the “social isolation” of its underclass.