WASHINGTON (AP) - At every turn, political leaders failed Katrina's victims. They didn't strengthen the levees. They ceded the streets to marauding looters. They left dead bodies to rot or bloat. Thousands suffered or died for lack of water, food and hope. Who's at fault? There's plenty of blame to go around - the White House, Congress, federal agencies, local governments, police and even residents of the Gulf Coast who refused orders to evacuate. But all the finger-pointing misses the point: Politicians and the people they lead too often ignore danger signs until a crisis hits ...