In this interview Matt Crawford speaks with author Catherine Musemeche about her book, Lethal Tides. When WWII began the U.S. Navy was unprepared and ill-informed when it came to oceanographic information. How to make wave & tide predictions, coral reef locations, map deep water levels to hide submarines, stability of coastal sand for amphibious landings and even how to prevent barnacles from bottom fouling ships. Enter the virtually unknown Mary Sears, "the first oceanographer of the navy," and her team of scientists. By gathering this information, Sears and her team played a major role in averting further disasters that had plagued earlier amphibious landings. Musemeche weaves Science, biography, military history and adventure into a book that is impossible to put down!