JOPLIN, MO - MAY 22: A wall is raised on a Habitat for Humanity house being built to replace one that was destroyed one year ago today after the town was hit by a castrophic tornado on May 22, 2012 in Joplin, Missouri. The EF-5 tornado left behind a path of destruction along with 161 deaths and hundreds of injuries, but one year later there are signs that the town is beginning to recover.  (Photo by Joe Raedle/Getty Images)2