Over the last 25 years, violent crime rates have declined in the United States. Researcher Patrick Sharkey says one factor behind the declining rates doesn't get the attention it deserves: the-on-the-ground work of community non-profit organizations. Sharkey has found that each additional nonprofit dedicated to confronting violence leads to a 1 percent drop in a city's murder rate.
Patrick Sharkey, chair of the sociology department at New York University and author of "Uneasy Peace: The Great Crime Decline, the Renewal of City Life, and the Next War on Violence."
This segment aired on January 29, 2018.