we're joined by the director, harry shearer. hurricane katrina and what happened afterward in new orleans, natural disaster. you say nonsense. >> i'm a comedian, i work in the show business world. what i say doesn't matter but what i did in this film was focus the camera on three people who do know what they are talking about, the leaders of two independent investigations into the flooding and a whistle blower from inside the corps of engineers. the two leaders of the investigations, the investigations lasted months and involved dozens and dozens of high skilled imminent people. formally concluded this was not a natural disaster, this was in the words of berkeley investigation, the greatest man made engineering catastrophe since chernobyl. that's pretty big nonetheless. they placed the responsibility squarely at the feet of the u.s. army corps of engineers. i think it is possibly why it hasn't gotten as much oxygen as it might have because people can't sit across the table and say it's your fault, no it's your fault. >> in the f