Stevens crash related to lack of technology he pushed for flight safety

FYI, I worked on what we called "DFR" - We have VFR and IFR, Yet in Alaska we need digital fusion. We called it DFR for Digital Flight Rules, but what we meant was Data-Driven flight. Free Flight is fine if you have enough data. We even tried (nearly 10 years ago, with funding provided by Senator Stevens) to allow NRO to provide satellite coverage. And if not, then commercial. It's not like this is rocket science, exactly. We do it to track animals across the arctic. Why not aircraft?