It's worth mentioning that this exists in Beijing down to the subway station level. Every station (at least the ones I passed through) had a security booth with

It's worth mentioning that this exists in Beijing down to the subway station level. Every station (at least the ones I passed through) had a security booth with an xray machine. It felt distinctly dystopian, but it was a fairly quick affair - bag in, bag out. International rail from the UK to the Schengen area also requires an airport style security check, though it's much more laid back.