Louisiana's Atchafalaya River Basin is one of the most dynamic and critical environments in the country. It sustains the nation's last cypress-tupelo wetland and provides a habitat for many species of animals. Endowed with natural gas and oil fields, the basin also supports a large commercial fisheries industry. Perhaps most crucial, it remains a primary component of the plan to control the Mississippi River and relieve flooding in New Orleans, Baton Rouge, and other communities in the lower river valley. The continuing health of the basin is a reflection not of nature, but of the work of the...