Gosh, back in the day...we didn’t need Checkpoint Charlie to go flying.
We controlled the borders back then. So the trash didn’t get in.
It’s true we had some DB Coopers and the occasional deranged Leftist hijackers who wanted to go to Cuba, but they stopped flying 727’s a while ago so you can’t bail out and Castro started deporting the hijackers because who needs criminals in your country? Not even Fidel.
We surrender a lot when we leave the front doors to the country wide open.
You can thank islam