MI5 History Book Stirs Debate On Spy Secrets [audio 4 minutes 1 second]

The British publisher Penguin launched an unusual book Monday — an authorized history of MI5, the British domestic intelligence agency, to mark the centenary of its founding in 1909. It's the first authorized history of any Western intelligence agency. Allowing an academic to write it and comb through the agency's files has raised questions about why its secrets shouldn't be kept secret.