Long queues my *****, gynormous.
From getting upstairs from check-in it took 1 whole hour to get to the scanner. How incompetent and slow people can be is just pathetic (the SLF - not the security staff I hasten to +).
Have no query with the coat logic, my coat has enough zips to light up even the most friendly setting of archway, so it comes off every time anyway, but that is neither here nor there.
That queue went 3 times the length of the building, and the security staff were saying if your flight doesn't take-off in the next hour "DON'T" join the queue. Ignored that and caught my flight that was scheduled for 75 mins. later by a whisker.
Moral - don't trust security - not even as much as they trust you !
