Professor Christopher Andrew, formerly official historian of MI5 and author of 'The Defence of the Realm: The Authorized History of MI5?, introduces key files from the 30th release of Security Service files to The National Archives in February 2014. The latest release brings the total number of MI5 files at Kew to 5,138. Notable files in this collection include previously unseen material on the former Labour MP, Geoffrey Bing and the actor Michael Redgrave.
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