Rescuers in boats and helicopters struggled to reach hundreds of wet and bedraggled victims of Hurricane Katrina along the Gulf Coast on Tuesday, while New Orleans slipped deeper into crisis as water began rising in the streets because of a levee break. The magnitude of the disaster - and the death toll in particular - became clearer with every tale of misery. Mississippi's governor said the number of dead in one county alone could be as high as 80. "At first light, the devastation is greater than our worst fears. It's just totally overwhelming," Louisiana Gov. Kathleen Blanco said the...