Wouldn’t it be better to fix the problem rather than fix the result of the problem?

I am in favor of asking the radio manufacturers to start designing for safer and more secure radio systems that cannot be shot down. The technology exists to design equipment that is immune to frequency conflicts. And yes it will take a few years for the changes to become commonplace.

Debating who should pay for a lost airplane is an exercise in futility. The human frailty built into the current Pin Box methodology cannot be fixed and accidents will continue to happen. The fundamental frequency pin concept was OK thirty years ago. The frequency pin concept is obsolete and flawed in today’s technology.