National security experts will bring the most critical new information to the Dayton-area next month. SelectTech Geospatial in Springfield - along with the Dayton Development Coalition - are hosting a National Security Forum on Aug. 11. The event is free, but spots are expected to fill quickly. Confirmed speakers include U.S. Sen. Rob Portman, R-Ohio; Gen. T. Michael "Buzz" Moseley, retired U.S. Air Force Chief of Staff; and Retired Gen. Lester Lyles, who led Air Force Materiel Command. Portman...