Automatic Dependent Surveillance Broadcast (ADS-B) is a technology mandated in all commercial and general aviation aircraft by 2020. It gives the pilot a kind of weather radar and assists with situational awareness, bringing excellent value to the cockpit for professional and private pilots alike. The ability to see thunderstorms and other aircraft in close proximity helps avoid collisions and accidents due to weather.
There is no debate as to the value and effectiveness of ADS-B. However, the technology used to bring all this wonderful situational awareness is rooted in equipment developed and commercialized in the 1960s, and it remains to be seen whether it puts passengers’ privacy at risk.