As you know, President Bush was highly engaged in the preparation and response effort, beginning when Katrina was a tropical storm off the coast of Florida.
It turned out we were all wrong, we had not adequately anticipated, ... The thing that changed this was not Katrina itself, the thing that was the catastrophic event was the failure of the levee.
It was the president who acknowledged the response to Hurricane Katrina was insufficient, and it was the president who first sought the lessons learned.