Originally Posted by
xyzzy
If someone screams at the crowd lined up to be screened nobody listens. The screams register as background noise. If, as in the UK, someone politely and directly reminds you of the rules as you pass, everyone listens.
You are absolutely correct. The take-command-of-the-situation-at-all-costs style of yelling is unique in my experience to U.S. checkpoints. I still recall a couple of years when we were flying out of SFO having an employee about 15 feet away shout rules through a bullhorn at a group of 7-8 of us perps - I mean passengers.
I hope it eventually broke.