'There's nothing left': Deep South tornadoes kill 26

Rescuers raced Saturday to search for survivors and help hundreds of people left homeless after a powerful tornado cut a devastating path through Mississippi, killing at least 25 people, injuring dozens, and flattening entire blocks as it carved a path of destruction for more than an hour. One person was killed in Alabama. The tornado devastated a swath of the Mississippi Delta town of Rolling Fork, reducing homes to piles of rubble, flipping cars on their sides and toppling the town's water tow