On this edition of StudioTulsa, an interesting conversation with Gabe Klein, an entrepreneur and urban-development advocate who was formerly the DOT director under Mayor Rahm Emanuel in Chicago, and also the Director of the District of Columbia DOT under Mayor Adrian M. Fenty. Prior to working in local government, Klein worked at a few notable start-ups, including Zipcar. On our show today, he talks about his new book, "Start-Up City: Inspiring Private and Public Entrepreneurship, Getting Projects Done, and Having Fun." About this guidebook, Ray LaHood, the former U.S.