Well, the terrorists have won... 

Snowglobes get their own special notice.
This is absolutely terrifying !! ZOMG!
What happens when they run out of space to display notices about dangerous things?
Until they build bigger airports to hold all the notices, people will be able to carry on all sorts of dangerous stuff.

-1 for humanity

Michael McKean hate to be picky but paranoia means fear of everybody. Over-reaction by authoritarians tends to be a different form of insanity.

Michael McKean When one is paranoid of everything, everything makes you paranoid.