Zombies have become a global phenomenon. But where did this fascination with the undead come from? NPR Throughline’s Rund Abdelfatah explains how one of our favorite monsters is a window into Haiti's history — and the horrors of slavery. To listen to the full podcast episode, visit npr.org/throughline. To tell us what you think about this video, fill out our 2-minute survey at npr.org/throughlinevideo. | NPR