Well, damn. As an FAA air traffic controller for 35 years, I was lied to all that time, and before that as a Navy radar tech. How could I have been so gullible as to believe the equipment I used every day was for military use only? They shoulda put labels or something on it.
Oh, "incoming threats" would not be using IFF, not wishing to be seen. At least anyone other than kamikazes.
Oh, by the way....it's Identification Friend or Foe, not Identity. It is also called "secondary radar", and in fact is only radar used by most ATC facilities.
Read my post, I said Identify, not as you said in your post “Identity”. The word “Identify” is the challenge word to unknown incoming vehicles or persons.
You’re correct, the air traffic process is known as “Identification”.
Now that we’ve settled the semantics, do you have something relevant to add with your 35 years of FAA traffic control?
What is your theory?