> This isn’t for pilots to know where they are, it’s for air traffic control to know where planes are. Yes, thank you for clarifying. I just explained that I

> This isn’t for pilots to know where they are, it’s for air traffic control to know where planes are. Yes, thank you for clarifying. I just explained that I am a pilot, so I did know that. It was an analogy. Just like the way that pilots have multiple redundant "where are you tools", so too do I think traffic controllers will have multiple redundant "where is everyone" tools. Because the industry, as a whole, is in favor of multiple redundant tools when it comes to safety.