See everything said on airports so far, all of these. By the time I arrive at security, Ive got my laptop out, belt off, metal out of pockets, loose stuff in bag, coat aff. I have ample time to do this, as I am invariably waiting behind 20 people who are stunned by the concept of airport security.
When i get to the front, its laptop and stuff in tray, bag on the belt, quick pat down to check, and through. 30 seconds. See how quickly this could be done? Why can't everyone else do this?