Tom Griffith, field service engineer with Ekso Bionics, helps Sarah Anderson, from San Francisco Bay Area , Calif., walk with the aid of the Ekso bionic suit at Jim Thorpe Rehabilitation Integris Southwest Medical Center in Oklahoma City Wednesday, July 25, 2012. Anderson was paralyzed from the chest down after being struck by a drunk driver. Photo by Paul B. Southerland, The Oklahoman