Dear Yale Law Community, Below is an abstract our upcoming presentation on Thursday, April 9, 2015, which is based our new book Mississippi River Tragedies: A Century of Unnatural Disaster (NYU Press 2014). The book is intended as a general audience law and history text, but it provides entry points for deeper legal research into topics including sovereign immunity, federally-subsidized flood insurance, the regulatory takings doctrine, land use regulation, climate change and sea level rise, and environmental justice: Mississippi River Tragedies: A Century of Unnatural Disaster: Few may realize the extent of the Mississippi River Basin, which drains about 40 percent of the continental United States and extends as far east as New York, Pennsylvania, Virginia, and North Carolina. Here, Congress forged many national water policies throughout a century of trial and error that transformed otherwise natural events such as floods, droughts, and hurricanes into "unnatural disasters." Engineers, with the approval of Congress, have done astounding things to bend the Mississippi River to their will: forcing one of its tributaries to flow uphill, transforming over a thousand miles of roiling currents into a placid staircase of water, and wresting the lower half of the river apart from its wetlands and floodplain. These efforts have been in pursuit of an unnatural human construct— the floodless floodplain. The transformation of the river basin was facilitated by a critical trio of federal laws and policies: 1) the Flood Control Act of 1928, which granted broad immunity to the Army Corps of Engineers as it re-worked the river; 2) the Disaster Relief Act of 1950, which attempted to develop a coordinated federal response to floods and other disasters but prompted reactive, rather than proactive, relief; and 3) the National Flood Insurance Program of 1968, which provided federally subsidized insurance to floodplain developments. Good intentions notwithstanding, disaster continues to plague the nation's waterways and floodplains in the Mississippi basin and beyond. We’re providing you with the Introduction and Chapter 1 for additional background. Thank you for your interest, and we look forward to seeing you on April 9. Best, Christine Klein & Sandra Zellmer