Bob Dobrogowski and his daughter Rosie look at the collapsed basement of his parents' home during July 2010 flooding in Milwaukee. Michael Sears/MCT/Landov hide caption

itoggle caption Michael Sears/MCT/Landov

After a tornado leveled Moore, Okla., last year, firefighter Shonn Neidel (left) developed an app that helps first responders locate storm shelters under the wreckage. Courtesy of Shonn Neidel hide caption

itoggle caption Courtesy of Shonn Neidel