S78 is correct - perspective is everything here.
What are security checking when they check your passport/paperwork then?
That it's you?
How does that work?
They are not given forgery training or rudimentary training on basic credibility based questioning techniques in order to trip up the person carrying documentation they should not have. They are just barrier technicians with respect to them.
More farce.
It would be interesting to see what would happen if they were vetted properly to SC/DV level, I suspect a few would not be at work the following Monday or, rather, the 6 months after the vetting was done because that's how long it takes to get a result.
I might have a bit more faith in the system then because I would know they were cleared to read up on what the 'threat' really is and how they have a part in countering it.
Cost I guess would mitigate against this.