As the governor's transportation task force opened its all-day meeting this morning, Lt. Gov. Brad Little, the panel's chairman, warned members that they were about to have "an out of body experience" with the first speaker, David Hartgen. The reason: He's the twin brother of state Rep. Stephen Hartgen, R-Twin Falls, who introduced his brother, an emeritus professor of transportation studies at the University of North Carolina-Charlotte and president of The Hartgen Group. David Hartgen shared some analysis of the economic impact of highways with the task force, but first he said of his brother, "I guess we do sort of look alike," and joked, "It was a lot of fun serving in the Legislature this last year." Perhaps even more than their physical resemblance, the sound of the two brothers' voices is eerily similar.