Forget it. The Caledonian Sleeper is not going to run through the Channel Tunnel

There's a higher chance that Scotland becomes independent, and joins the EU and Schengen, than the Caledonian Sleeper is extended through the Channel Tunnel under the current political framework.Really.I am not joking.Whatever the SNP and The Scotsman might say.I know a thing or two about the Channel Tunnel. I wrote a long and detailed report about it last year.And that report did not cover night trains.Because running long distance trains through the Channel Tunnel is complicated. And running night trains is also more complicated than daytime trains. Put those two together and you have such a thicket of complexity I cannot see a way to overcome it all.Let's just list the issues.First, passengers need to have passports controlled and bags scanned before boarding the train. Where are you going to do that in Glasgow and Edinburgh, and any interim stops? And oh yeah, you have to have French border guards in those places too, because of the rules of the juxtaposed controls. And who is…