ADB-B receiver + cheap drones with simple homing software = total shutdown of US air traffic. I think $20,000 is probably an overestimation of what it would tak

ADB-B receiver + cheap drones with simple homing software = total shutdown of US air traffic. I think $20,000 is probably an overestimation of what it would take. There's a lot of asymmetric situations starting to "mature" and defense side is way behind since they're using them to exploit the populace. It's not just a "cyber" problem.