Duy Linh Tu and Lisa Biagiotti talk about the making of deepsouth. (6:07) Duy Linh Tu, an assistant professor at Columbia Journalism School, has been teaching students digital storytelling techniques since 2002. So he was encouraging when a former student told him she wanted to make a documentary about the impact of HIV in the Deep South—and intrigued when she suggested he work on it with her.moreless
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