Storm clouds pass over the devastated Greenbriar Nursing Home in Joplin, Mo. on Wednesday, May 25, 2011. Eleven residents of the facility died when an EF-5 tornado tore through much of the city Sunday, damaging a hospital and hundreds of homes and businesses and killing at least 125 people. (AP Photo/Charlie Riedel)
An aerial photograph taken on Tuesday, May 24, 2011, shows a neighborhood in Joplin, Mo., that was destroyed by a powerful tornado on Sunday. (AP Photo/Charlie Riedel)
A man salvages a guitar from a severely damaged home in Joplin, Mo., on Monday, May 23, 2011. A large tornado moved through much of the city Sunday, damaging a hospital and hundreds of homes and businesses and killing at least 89 people. (AP Photo/Charlie Riedel)
A cross stands atop a church that was severely damaged by a tornado in Joplin, Mo., as a severe storm passes overhead on Monday, May 23, 2011. A large tornado moved through much of the city Sunday, damaging a hospital, hundreds of homes and businesses and killing at least 89 people. (AP Photo/Charlie Riedel)
Emergency workers wait for a medical team after finding a body in a tornado-ravaged car in Joplin, Mo., on Monday, May 23, 2011. A large tornado moved through much of the city Sunday, damaging a hospital and hundreds of homes and businesses. (AP Photo/Charlie Riedel)
Storm clouds dwarf a farm near Lamar, Mo., as the sun sets on Sunday, May 22, 2011. A storm earlier produced a large tornado that moved through much of Joplin, Mo., damaging a hospital and hundreds of homes and businesses. (AP Photo/Charlie Riedel)
An emergency worker searches a Walmart store that was severely damaged by a tornado in Joplin, Mo., on Sunday, May 22, 2011. (AP Photo/Charlie Riedel)
Don Atteberry, 89, surveys damage at his home in Joplin, Mo., on Monday, May 23, 2011, after it was severely damaged by a tornado on Sunday. The twister killed at least 89 people. (AP Photo/Charlie Riedel)
On Monday, May 23, 2011, Anita Stokes salvages items from her Joplin, Mo., home, which was destroyed Sunday by a tornado. The large twister moved through much of the city, damaging a hospital and hundreds of homes and businesses and killing at least 89 people. (AP Photo/Charlie Riedel)
