This isn't about throwing away radar, it's about augmenting the current system with more accurate data for better and safer management of airspace. Most airpla

This isn't about throwing away radar, it's about augmenting the current system with more accurate data for better and safer management of airspace. Most airplanes already rely heavily on GPS for their own navigation. If GPS is being jammed (or having any other clear issue) they'll fall back to their many other redundant navigation instruments. If you want to be scared, be scared about spoofing of ILS signals, where a couple of dozen feet of error can be fatal. https://arstechnica.com/information-technology/2019/05/the-radio-navigation-planes-use-to-land-safely-is-insecure-and-can-be-hacked/ https://arstechnica.com/information-technology/2019/05/the-r...