As buses finally started arriving to pluck refugees from the Louisiana Superdome yesterday, a horrifying picture emerged of the squalor, violence and mayhem that they faced during the days spent huddled in the stadium. Twenty-five thousand miserable people — many of whom lost their homes to Hurricane Katrina — hunkered down with little food and little water, overflowing toilets, stifling heat and the unbearable stench of human waste. Children slept in pools of urine. Crack vials littered the bathrooms. Bloodstains smeared the walls near vending machines that had been pried open. Gunfire has ricocheted down the corridors. There were two...