Reported here on the Guardian website:
Passengers can refuse to undergo virtual strip by full-body x-ray scanner that leaves little to the imagination of security staff.
Originally, passengers had to remove their jackets when passing through airport security. Then it was belts, and soon shoes had to come off too. But those who feared that losing one’s trousers was the next logical step will find scant comfort in the news that an x-ray machine that produces “naked” images of passengers will be introduced at a British international airport today.