After Hurricane Katrina and the levee breaches in New Orleans, Sandy Rosenthal became a citizen investigator and founder of the nonprofit Levees.org with 25,000 supporters nationally. Her book is about how she, and her group, exposed the culprit in the 2005 disaster – the Army Corps of Engineers – and how the federal agency spent millions covering up its levee-building mistakes and fooling the American public. She is a tireless and effective advocate for the 62% of the American population (190 million people) currently residing in counties protected by levees. When Rosenthal is not advocating for safe levees, she plays tennis and practices yoga.