[seabass-labrax]

This is sadly too true for the Channel Tunnel railway linking Britain with France. The post-Brexit border security easily takes in excess of half an hour as several hundred passengers shuffle single-file through the scanners. Although it is still marginally faster than flying for me due to my distance from an airport (as well as Britain's underdeveloped domestic aviation sector in general) the time spent at the station usually exceeds my actual journey now.

What's most stupid about security for rail passengers is that the original fear from 9/11 doesn't even apply - you can't hijack a train and crash it into a skyscraper!

[Symbiote]

The security scanners were always there for the Channel Tunnel, though the check is much less intensive than for air travel. They are looking for bombs, gas canisters, guns and maybe large knives.

London had terrorist attacks from the IRA long before 9/11, including attacks on the transport network. There were 13 in 1991, of which 4 were on trains or at stations.

The new delays are for the passport checks. What used to be ~10 seconds for each EU citizen — is the passport/ID card valid and does the face match? — is now 60+ seconds for British people entering the EU, as the official must check they haven't stayed more than 90 days in the last 180 etc.