> ... and which will never succeed again. That seems a little...overconfident. While some of the TSA stuff is definitely security theater that adds little val

> ... and which will never succeed again. That seems a little...overconfident. While some of the TSA stuff is definitely security theater that adds little value, not all of it is. > "Arbitrarily-prohibited" was a jab at everything else they've seen fit to condemn by extension, for example pliers. It's not just knives that you have to be concerned about, but anything remotely non-basic that you otherwise keep in your backpack. You can carry on pliers, just as long as they're less than 7 inches long: https://www.agefotostock.com/age/en/Stock-Images/Rights-Managed/G14-1968677 https://www.agefotostock.com/age/en/Stock-Images/Rights-Mana... https://www.tsa.gov/travel/security-screening/whatcanibring/items/wrenchespliers https://www.tsa.gov/travel/security-screening/whatcanibring/... The pair of pliers I have is 7.25 inches long. That rule seems quite reasonable to me. They do have a difficult task: write rules that can be executed quickly by relatively low-level employees to exclude items that could be used as a weapon or be a danger to the plane. I doubt that's even possible to do without creating corner cases that someone could gripe about.