The concept of “airport security” is actually Access Control. ”Access Control” is a catch-all concept that basically boils down to the idea of controlling who can get into a particular area and who can’t.
The reason that access control is impossible in an airport is very, very simple. The underpinning of all access control is this concept:
Deny access to everyone but a few individuals.
“Airport security” attempts the reverse:
Allow access to everyone but a few individuals.
This is flatly impossible.
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