SIOUX FALLS, S.D. (KELO) -- Doug Clark, a longtime flagman at Huset's Speedway in Brandon, has died. The World of Outlaws Sprint Car Series made a post on Facebook Friday afternoon. "He was a prominent figure at Knoxville Raceway and Huset's Speedway, an icon in the flag stand, but more importantly, a great friend to [...] ...read more read less