Indeed, one could probably find adherents to the notion that it's a far better way of starting off a nation than with a pack of bible thumpers with persecution complexes...
That was my last experience of arriving at Heathrow, direct from Bangkok, two and a half years ago.
There was immigration control, with the expected passport check, but Customs? Nothing. No one.
How many hardware guys does it take to change a light bulb? "Well the diagnostics say it's fine buddy, so it's a software problem."