Yeah, but security theater is the only one that makes you take all of your stuff out of your bags and then take off your shoes.
Audience participation!
………..
Yes, in air travel alone it has given us the war on liquid volumes above 3.4oz and the war on shoes. Luckily by 2009 the fervor & public willingness to go along had died down a bit so we all go to keep our underwear after NWA Flight 253.