See this reporter's video during a looting of a big box store:
http://www.metacafe.com/watch/31299/should_hurricane_katrina_looters_be_tolerated/
Did I miss the prosecution of those two cops with the shopping cart? :-> Maybe I did. I know many Katrina victims were prosecuted, but it was for stealing liquor in one case I have read about. I may have missed all those prosecutions for taking food, water, and clothing.

According to this story
http://www.terradaily.com/news/hurricane-05ze.html
people got together and shared information on where necessities were located. "We looted a store because we had no food and we had to do something," is one quote. Assure me that if you have no food and no prospects for food other than looting it from a store that you won't loot.

Comparing the King riots with Katrina is extravagantly lacking in conformity with the facts, in my very humble opinion.