As Southern California faces blistering heat, we're joined by Los Angeles Chief Heat Officer Marta Segura, who is one of just three in the country. Segura opens up about how her parents' struggle with heat-related illness informed her approach to this new and critical role, and she shares her vision for the job. Plus, LA County Supervisor Kathryn Barger on why we cannot let ourselves think this week was just a weird, warm fluke.