This has been an issue before 9.11 - what do you expect for 7 bucks, or its equivalent, per hour, under severe pressure? Security in the US was sh*te before 9.11 due to paying peanuts, nowadays it's worse as a) there are far more of them on the same wage, and b) the procedures are complicated beyond belief or sense.
That said, though - PENKOs mention of contempt for the screeners rings true in some cases, and maybe the sometimes overzealous "attitude" comes directly as a result of our "attitude"? They're following SOPs rigidly, aren't you doing the same for your own job when you're finally let through?
Good for the Scandinavian airlines, though, it's about time there was a considered response as opposed to the bo**ocks about 24 hour strikes. Apart from that, you either a) employ more of them so they are under less pressure and can operate in a more human fashion, or preferably b) train them and pay them properly so they act professionally.
Got to go, I hear some BAA pigs flying outside the door....