At least 40 people dead after extreme weather slams parts of U.S.

At least 40 people have died across seven states in a storm system that brought high winds, rain, tornadoes and wildfires to parts of the South and Midwest. CBS News' Jason Allen has more.

At least 40 people dead after extreme weather slams parts of U.S.
At least 40 people have died across seven states in a storm system that brought high winds, rain, tornadoes and wildfires to parts of the South and Midwest. CBS News' Jason Allen has more.