It’s been 15 years since Hurricane Katrina devastated our country. And while many of us remember the storm as an acute moment in history, a new book is making a case that the lead-up to Katrina made its impacts inevitable. We talk about the structural issues that affected our recovery from Katrina, and what more needs to be done. Sarah Broom, Andy Horowitz and Jarvis DeBerry join Meghna Chakrabarti.