Apple employee Benjamin Salasek (L) talks with new iPad owner Miguel Bullon (C) as Pedro Cordero checks out his new iPad at ...

Violent storms have cut through a wide swath of the South and Midwest, spawning tornadoes and killing at least one person, knocking down power lines and trees and ripping roofs off homes.

Authorities have ordered schools to remain closed, while tourists have been told to stay indoors and keep their windows shut.