46 Stops: The Driving Life and Death of Philando Castile

When Philando Castile was killed by a police officer during a recent traffic stop, it was the last of at least 46 times he had been pulled over by police. How does that happen? And what does it say about policing in communities of color? Gene Demby talks with NPR's Cheryl Corley and Eyder Peralta, who reported on Castile's encounters with local police.