The US murder rate is around 5 per 100,000 people, lower than a recent COVID-era spike, but nonetheless much higher than most other developed countries. Many Americans have concluded that either they need a gun to protect themselves, or that the problem is too big to address. In our second episode with Jens Ludwig, author of Unforgiving Places: The Unexpected Origins of American Gun Violence, he outlines some small and cheap interventions that could make a big difference in how we tackle homicides.