they literally gave taro okamoto's painting an update. >> werman: did you have to destroy any of okamoto's original painting to do this? >> werman: the "level seven" installation was left alone for a day before police were notified and it was taken down. >> werman: with chim pom's painting gone, "the myth of tomorrow" was back in its original form. but perhaps, for some of these japanese commuters, they may not look at okamotos' painting, and their futures, quite the same way again. >> next time on frontline, in the days after hurricane katrina... >> people were shot and killed by the new orleans police department. >> ...six controversial cases... >> bodies just don't burn up like that. >> the way it was destroyed was telling a story. >> did the police use necessary force? >> people have no idea what this was like. >> or were they out of control? >> how do you take back a city? >> frontline, propublica and the time-picayune investigate "law and disorder." >> frontline continues online. track the medical marijuana laws and the price of pot in your state; see more of chim pom's artwork; read