Well, there are a lot of kooks out in the world.
The SR 71 was developed way back when by Kelly Johnson, and native of an area where my wife hails from and knew. Kelly’s cousins would tell the story of how the man was secretive and would not talk about his job. He was just an engineer.
If people like Kelly could do that then, what could be done now?
Oh there are alien crafts alright. It just isnt theirs, they are ours.