Footage of new MI5 exhibit at National Archives Exhibition

A briefcase left behind by infamous Cambridge spy Guy Burgess as he fled to Moscow in 1951 is among never-before-seen MI5 artefacts going on display at The National Archives in Kew, South-West London. The MI5: Official Secrets exhibition, which features objects from MI5’s private collection alongside declassified documents, marks the first time the intelligence agency has ever collaborated to display its files to the public.