Many Americans have decided that their country’s problem is that it has too many police officers. In fact, it has too few.

Police scanner apps allow you to listen to radio feeds, whether you're a hobbyist interested in police communications or want to learn about local police and crime in your neighborhood. Zeroing in on ...

NPR's Mary Louise Kelly talks with Barry Friedman, the director of New York University's Policing Project, about the role of the police in modern society. What are police really for in this country?