Max Continouus - I had to read your comment twice just to make sure I wasn't still asleep!! Arm everyone on the plane, including would be hijackers???? I think if I had a choice of being sat on a plane with everyone armed or everyone having gone through security checks and any weapons removed I would go for the latter. I am starting to think that the only reason you work at an airport is it gives you somewhere to park your spaceship...
Harpy - Agreed, they can. On the other hand though, a mate of mine used to work in Customs and to get the job he underwent very stringent proceedures - he was PV'd, neighbours, friends interviewed etc. He was also subject to random checks, although admittedly not as stringent as getting checked every time you walk in or out.
Julian.