Thanks. To be fair, I try to fly direct these days, but I'm sure that on some occasions when I had an international change, Helsinki? Kuala Lumpur? I had to go through security again. I know that memory plays tricks, but I have a memory of wandering around, looking for the way to connections, and going through security again, and wondering why, since i had been through security in London! Maybe Hong Kong, where I sometimes changed for Tokyo or Bangkok. Any airport where you have to change terminals is going to be difficult.