TSA direct costs, passenger time wasted, flights missed, items confiscated.
All so no bombs on planes. But somehow also no bombs at sports events or music concerts, or on trains or subways, or courthouses or....
So the TSA is either stunningly successful or a complete waste. I'd argue a complete waste, but hey, everyone in a TSA uniform drawing a paycheck us entitled to a different opinion.
It's just not bombs that are a danger. You really don't want anyone to set the airplane on fire either, or start shooting people or holes into the fuselage.
AFAIK America has had plenty of shootings, and probably arson attacks too over that time period.
A year ago Air Busan Flight 391 burned completely after a single passenger power bank caught fire on the overhead compartment, and crew couldn't extinguish it. If that had happened on a plane that was in middle of an ocean for example, it would have been almost certainly a total loss with everyone dead, or at least ditching into the sea.
You're right that fortunately there aren't many cases of people causing fires inside airliners on purpose. But that doesn't mean it couldn't happen. When a single power bank can cause catastrophic results like this, I'm glad there's at least some monitoring of what people carry into the airplane in their bags.
You claim comfort from monitoring, and yet the easiest source of fire on a plane is z lithium battery. Which are expressly allowed.
In other words the TSA specifically does not seek yo prevent fires. The reason we don't have people setting fires on planes is because people don't want to do that. And if they did the TSA would be specifically useless in preventing it.
I've traveled all over Europe and North America and have taken a lot of trains. Not once did I have to remove my shoe, scan my baggage, or had any kind of liquid restrictions.
Having a lot of experience with trains too, I can confirm this.
In Europe the major exceptions are Eurostar (Channel Tunnel) and the Spanish high-speed network, where the major stations are like airports, with airport-style security, airport-style departure lounges, and waiting. As I understand it, the extra security is at least partly an outcome of the Madrid terrorist bombings of 2004. Terribly self-defeating.
In France by contrast you can still arrive 2 minutes before the TGV departs.
Concerts and things like sporting events in the US typically require any bags to be clear and only be of a certain size. They may also be checked. No outside liquids are typically allowed (mainly to avoid alcohol). Usually people are at least wanded to prevent weapons, but sometimes metal detectors are setup.
i've been to a bunch of concerts here in the netherlands and they do the most basic checks.
last time, they checked my wife's purse without a torch (so she could've hidden anything inside) and didn't check anything on me so i got in with two 1g edibles.
There are even restaurants in London you can't get to without going through a scanner. E.g. half the restaurants at The Shard.
But to give an idea of how idiotic it is: Those are on the 32nd and 33rd floor. Next door is the Shangri La hotel of The Shard, where you can walk straight in and take the lift to the 31st (no scanners), and change to a lift for the 52nd floor (no scanners).
Quite possibly, but that doesn't seem to be their concern for whatever reason. It's very unclear to me what the supposed threat profile is for those cases (perhaps they're concerned it might be easier to do sufficient damage higher up given that the Shard narrows floor by floor; who knows), but The Shard one strikes me as particularly "funny" given you gain access to more of the building by wandering in the entrance next door to the one where the scanners are.