With conditions in the hurricane-ravaged city of New Orleans rapidly deteriorating, Gov. Kathleen Blanco said Tuesday that everyone still in the city, now huddled in the Superdome and other rescue centers, needs to be evacuated. "The situation is untenable," Blanco said, pausing to choke back tears at a news conference. "It's just heartbreaking." The breach of two levees Tuesday meant the city was rapidly filling with water and the prospect of having power was a long time off, the governor said. She said the storm also severed a major water main, leaving the city without drinkable water. "The goal is...