On our New Thinking podcast, Patrick Sharkey, the author of Uneasy Peace: The Great Crime Decline, the Renewal of City Life, and the Next War on Violence discusses the social costs of violence and the communities benefiting most from its decline, and the relationship between violence and inequality, one that threatens the current fragile gains. He also points to the signal role of community organizing and community-based nonprofits in combating violence and building safer, more resilient cities.