Just a minor story but when the original QE2 building was built and it was just the second terminal, my father was in charge of the Customs & Excise teams in the terminal (mid 60's at a guess).
In the days of exchange controls, he had the pleasure of arresting Lord Snowden for smuggling Hasselblad cameras into the UK - basically the guy went out with a crate of old wrecked ones for a photoshoot and then tried coming back in, with a crate full of nice shiny new ones, pretending they were the same ones he took out.
Snowden was doubly unlucky as my father happened to be one of the inspectors who were there for both incoming and outgoing activities, so he knew the difference.
Upon being arrested, Lord Snowden tried the 'Do you know who I am ?' game to which my father said he replied 'Of course, but for the next hour you will be in the police lockup with all the other criminals'.
Two hours later he was told to release the guy but not his cameras.