[figassis]

It is mostly security, but not to residents of the country. Those can enforce their rights. In my country, I can argue with airport security, and win. Foreigners can’t, so they follow whatever rules. A few times when landing in the US, security was extremely rude, I think just looking for an excuse (things like throwing your laptop a few feet away, while staring at you, etc). You take it bc you’re not home, and the cost of ruining your vacation is not worth it.

What I’m trying to say is that , while a lot of it is theater, TSA may be more effective security against foreigners but you as a resident don’t notice because you can opt out. Try going to the UK and telling them you can’t raise your arms while being a US citizen.

[chias]

I tried to opt out in the UK last time I was there a few years ago. The agent looked at me, confused, and said "so... you don't want to get on the plane?". She told me the the UK didn't allow opt-outs.

This was the only time I've gone through the machine since they were introduced.

[lazide]

Airport security in India is particularly infuriating on this point. Everything gets scanned and fed through over and over again, and everyone gets wanded and patted down over and over again, with maximum ‘fuck you’ to any passenger that dares to question the sanity of restarting your entire screening - because you left your belt on.

Meanwhile, I haven’t even had a western airports metal detector even fire on the same belt in years.

[kitd]

Note that for the most part, air travel into/out of the UK is international, so the constraints are stricter.

[GJim]

> The agent looked at me, confused, and said "so... you don't want to get on the plane?"

Brit here.

That's simply the British way of "calling you out" on your bullshit. Had you given a legitimate reason not to be scanned (and I can't think of one offhand), then I assure you, they would have been quite nice and helpful; certainly so in comparison to American standards of airport security staff!

[caseysoftware]

Reasonable hypothesis but not correct in the US.

The point where you present your ticket+ID is before and separate from the physical screening. It could be anywhere from a few meters to dozens of meters separating them.

At the screening stage, the agents do not know who you are or your nationality.

[figassis]

It's not about being recognized, it's about when you are asked to be patted down, having the courage to lie "I can't raise my arms over my head", knowing the risk of being caught is at worst not making this flight. For a foreigner it might be getting banned permanently from the country. Same concept as self censorship. You do what you're told and then you go enjoy your vacation.

[mothballed]

I don't think I've ever made it through the physical screening without betraying my accent at some point. Sure you can work your way out of an accent, but it's not easy, and requires years of practice, and probably the most reliable (but fuzzy) low-scrutiny indicator of someone who "aint from around here" in a multicultural society where looks are ~useless for such determinations.