The Air Force is looking at future types of precision, navigation and timing (PNT) technologies in case its access to its Global Positioning System (GPS) signal is denied or the system is compromised, the service’s top officer said Wednesday. “I’m pretty confident about precision navigation in the future, but we have to have a varied menu of things to choose from if we want to guarantee the ability to use (GPS),” Air Force Chief of Staff Gen. Mark Welsh told…
