La. spillway to be opened; 25,000 people could be in harm's way of floods

La. spillway to be opened; 25,000 people could be in harm's way of floodsArmy engineers prepared Saturday to slowly open the gates of an emergency spillway along the rising Mississippi River, diverting floodwaters from Baton Rouge and New Orleans, yet inundating homes and farms in parts of Louisiana's populated Cajun country. About 25,000 people and 11,000 structures could be in

Mississippi flood

Mississippi floodThousands of people are being warned to prepare for the worst tonight as the Mississippi River swells to historic flood levels. Heavy rain is pushing the river's basin to its limits. That is forcing water into already swollen tributaries, and wherever else it can go.

CBS News correspondent Mark Strassmann reports that the city of Memphis is preparing for the surge, and many