Alex, Ron and Edna.
OK. For the record I'm 100% with you on liquids, tweezers, Leathermans (men?), packed lunches, stroppy attitudes, surly and over assertive security employees, shoe removal, queues, scissors, toothpaste etc etc.
All I am saying is that there IS a need to pass through 'security' to screen out proxy's or impersonaters.
Incidentally the proxy bomber tactic was used in NI quite effectively. And for sure the drivers were pleased to be challenged, as they always were, thus giving them a chance to 'fess up (and run).
The point of my orig post, which you seem determined to miss, is that only a cursory encounter with 'security' is required to achieve this aim.
But that cursory check IS required. The rest is not.