Researchers, including faculty and students from the University of Alabama, who studied the aftermath of a devastating 2013 tornado in Oklahoma say simple design changes could improve the survivability of wood-frame structures such as residential homes during tornadoes. Sources: NBC News, Phys.org, The Tuscaloosa News, WBMA ABC 33/40, WIAT CBS 42, Science Daily, Minnesota Star-Tribune, WVUA TV, Housing Zone, KSHB-NBC , Ozy.com, Insurance Journal