A massive tornado ripped through Joplin, Mo., Sunday, May 22, 2011. The Red Cross estimated as much as 75 percent of the town was leveled.
Mark Schiedelbein/AP Photo
A destroyed helicopter lies on its side in the parking lot of the Joplin Regional Medical Center in Joplin, Mo., Sunday, May 22, 2011. A large tornado moved through much of the city, damaging the hospital and hundreds of homes and businesses.