One year ago – on May 22, 2011 – one of the deadliest tornados in U.S. history struck the city of Joplin, Missouri. The twister killed 160 people and injured hundreds more.
Recently, IPR’s Ben Kieffer traveled to Joplin to talk with tornado survivors.
He also spoke with researchers from Iowa State University who went to Joplin in the immediate aftermath. They surveyed structural damage to find out what it reveals about how best to survive a tornado.