My wife and I recently flew out of a large international airport - clue, it was near Hounslow. We noticed as our hand baggage was being x-rayed that those operating the machine were engaged in friendly banter and not looking at the screen. Someone please tell me that this was perfectly OK and that the machine would have hollered if there had been something dodgy in a bag. Otherwise I'm left with the conclusion that we get what we pay for - and they deserve MUCH more if our lives are in their hands.