Hurricane Katrina. The mere mention of those words conjures up horrific images of a natural disaster made all the more horrendous because of the manmade failure that followed. Acclaimed director Spike Lee became documentarian for this powerful HBO special. Not only does he go back to the damaged area to catch up on the folks left stranded but he also delves into the reasons why there was such a breakdown of law, order and support. It's the definitive word on a dark tragedy in modern American history.