Kanye West is firing off at America's white leaders again a week after he shocked TV viewers on a Hurricane Katrina telethon by claiming President George W Bush is a racist. The rapper ignored the telethon script and attacked Bush for not acting quicker to save African-Americans stranded by the storms in Mississippi and Louisiana. And he isn't finished yet. Appearing on Ellen De Generes chat show on Friday, West insisted Bush and other politicians knew America's Gulf Coast couldn't withstand a hurricane a year before Katrina hit. "Back in the days when it was time to clean the kitchen,...