When Hannah Miller decided to examine the growing issue of human trafficking in South Dakota, she decided to look at the issue first-hand.  She blended into the crowd during the Sturgis Motorcycle Rally to conduct undercover research.  Miller said South Dakota is among the top six worst states for human trafficking.  Miller is Friday's Augustana College Thought Leader Forum speaker when she presents "The Dirty Little Secrets: Human Trafficking in South Dakota" at 11:30 a.m. at C.J. Callaway's in Sioux Falls.