On 31 January 2003, Katharine Gun, a 28-year old translator of Mandarin at Government Communication Headquarters in Cheltenham, arrived at work to find she had been copied in to an email from Frank Koza at the American National Security Agency.
With the US and UK facing stiff opposition at the United Nations to its aggressive stance on Iraq, the email explained how the American and British intelligence agencies were mounting a “dirty tricks” operation at the Security Council in an…