The Police in New Orleans really do have their priorities wrong. Thousands of people are homeless as a result of the devastation caused by hurricane Katrina, and the Police are wasting precious time trying to stop looting from supermarkets.
OK, I know that the Police have a duty to prevent lawlessness, but please, get real. The food in these shops can not be sold, indeed, that which is still fit for consumption will be beyond it's 'best before' date before the insurers even get to it. So instead of trying to stop people nicking it, take control of it and get it distributed fairly to those in most desperate need. As for the other stuff, electrical goods, etc, most of it is ruined anyway.