Oklahoma Gov. Mary Fallin views tornado damage from a helicopter in Piedmont, Okla., Wednesday, May 25, 2011. Violent storms rumbled through the central U.S. on Wednesday, spawning tornadoes that turned homes into splintered wreckage, killing at least 14 people over two days and hampering rescue efforts in a city slammed by a massive twister days earlier. (AP Photo/Sue Ogrocki, Pool)