http://theadvocate.com/news/5301477-123/isaacs-impact
After Hurricane Katrina questions were raised about the long term safety of low lying communities outside the New Orleans levee system. No decisions were made and redevelopment was funded in these communities. These areas were flooded by Hurricane Gustav, and then flooded again by Hurricane Isaac. Despite being a very small storm, Isaac caused massive damage to these communities. This emphasizes that these communities are sustainable in the long term.