The threat of a nuclear attack on the UK in the 1950s caused concern over the supply of tea, top-secret documents which have now been released reveal.
Government officials planning food supplies said the tea situation would be "very serious" after a nuclear war.
Those were the days: a UK government actually getting its priorities right. Tea had got us through two world wars, and we were going to need reliable supplies to make it through a third.
Of course, it all started going downhill in 1938 with the invention of Nescafé. Now, we've turned into a nation of hyperactive, migrane-ridden instant coffee swillers. It was all part of a sinister American plot to destroy our empire.
More tea? Don't mind if I do!