Karl Dean, the new mayor of Nashville, came by the offices the other day to tape an upcoming episode of One on One with John Seigenthaler. It was a great interview that touched on a variety of subjects and issues facing Nashville, such as public schools, public safety and economic development. Dean and Seigenthaler also discussed the importance of “regionalism” and tackled some hot topics of the day, including the Predators and the convention center. Tune in on Oct. 12 at 8 p.m.