Demopolis, United States

At a Glance Concerns about the rebuilt levees, flood gates and other protection measures date back several years. The Corps is conducting a study to determine whether shoring the system up even more is feasible. Draft of the study should be done by December. The vast network of levees, flood walls, gates and pumps that protects New Orleans was rebuilt after Hurricane Katrina, and just finished last year, at a cost of some $14 billion. But now, the rapid onset...