DOT Daytona Beach air traffic overhaul aims to improve safety with new technology . GPS is switching from radar tracking to more accurate GPS tracking . Steps being taken to protect NextGen -based tracking from `` spoofing '' hackers . GPS warns about security gaps unless authorities coordinate on tracking coverage .
NextGen U.S. air traffic overhaul aims to improve safety with new technology . FAA is switching from radar tracking to more accurate GPS tracking . Steps being taken to protect GPS-based tracking from `` spoofing '' hackers . DOT warns about security gaps unless authorities coordinate on tracking coverage .