This New Noise: The Extraordinary Birth and Troubled Life of the BBC, by Charlotte Higgins - book review
The BBC might be the first thing you hear each morning as you stir your coffee, but it may also be the last thing you hear, for it falls to Auntie to announce the end of the world. In a nuclear war, if a submarine cannot raise instructions from land, then finds Radio 4 has gone silent, the commander can assume Britain is gone.