Living in South Florida for most of my adult life, I have accepted Hurricanes as a reality. I put them in the "not an if but a when" category. The wake up for many people here was in 2004 with Charlie, Frances and Jeanne...then again in '05 with Wilma. We are a bit better prepared here because of the building codes and this areas history as it pertains to Hurricanes. I did some Red Cross Disaster Volunteer work here and along the Mississippi Gulf Coast after Katrina. I realized that New Orleans didn't get a lot of 100+ MPH winds for very long and saw first hand how vulnerable that city is to flooding. The whole area is "the worst case scenario" for a Tropical Storm or a Hurricane. Hindsight being 20/20 it was clearly obvious to me that the local governmental agencies failed their citizens in not totally evacuating that area. The Federal government finished the "failure" part by not mobilizing in a timely manner to help the people of the Gulf Coast including New Orleans.
The lesson we can take from this is to not depend on the government to do anything for us and be pleasantly surprised if they do. It will happen again...we must learn from our mistakes.