The Gulf coast of Florida and Alabama is a fragile combination of barrier islands, low-lying marshes, and highly erodable mainland shores. In addition to sea-level rise, winter storms, and altered sediment supplies, hurricanes frequently damage or destroy the human developments and infrastructures that line this coast. Indeed, a single storm can cause billions of dollars in losses. Memories of such hurricanes as Camille, Frederic, Opal, and Andrew...