What about a 24 hr " withdrawal of labour " ( sounds better than " strike " ). That should focus a few minds.
I had the misfortune to travel through LGW a few months ago, and have vowed never again, if possible.
Totally stupid procedures. Luckily i do not live in B`liars paradise, and i have great sympathy for you that do.
" Grinning Gordon " will not be any better. Good luck.
