Dr. Jeff Masters from Weather Underground was on the show to talk about the old river control structure and the Morganza Spillway. He tells Brian what Weather Underground is and why he decided to start it. Dr. Masters did a three part piece on the old river control structure. Part 1: https://www.wunderground.com/cat6/Americas-Achilles-Heel-Mississippi-Rivers-Old-River-Control-Structure Part 2: https://www.wunderground.com/cat6/Escalating-Floods-Putting-Mississippi-Rivers-Old-River-Control-Structure-Risk Part 3: https://www.wunderground.com/cat6/If-Old-River-Control-Structure-Fails-Catastrophe-Global-Impact. Dr. Masters explains what could happen if the stucture fails and what opening the Morganza Spillway will mean for Louisiana.