PB, I agree with you mate......there are allot of airport personnel that are not screened, it's the ultimate hypocracy.
I had security staff at BNE international about 6 months ago just about tear the flight plan out of my hands to check it to see I wasn't harbouring anything suspect.
Security people are over zealous and lack the intellect to apply basic common sense in matters of elderly with metal hips, knees etc, and plus, they like to play big authoritarian over us tech crew. Says something about their recruitment process really.