"What can they do
to you? Whatever they want.
[...]
They can do anything
you can't stop them
from doing."

Who knows what security measures are next? If they want you to take one shoe off until you're in your seat (to keep you off-balance), they will do it. If they want to install carnival-ride seat bars across the seats to keep you from 'congregating', they will do it. They will do *anything*, no matter how prepostorous, for the safety of the flying public. All the articles in the world aren't going to let you carry 4 ounces of gel on-board.

The falcon cannot hear the falconer. Things fall apart. 9/11 changed everything.