This Danziger Bridge incident is highly charged case; here in Louisiana, nationally, and (as the pulled BBC post shows) internationally. It is indeed a horrid tragedy, and justice has again been done. But it has nothing to do with being equipped to survive, or to survive, other than the lesson NightHiker gave.
There are many, many lessons that come from Katrina that directly relate to being equipped to survive, and many stories illustrating the same. This is not one of them. That is why I pulled the link.