The MI5: Official Secrets exhibition, which features objects from MI5's private collection alongside declassified documents, ...

While teaching at Cambridge University, Blunt was influential in recruiting the other three, who were all students there. Burgess became a journalist after he left university, but on the outbreak ...

"Watchers" – effectively spies in MI5 – were also instructed ... Case details and confessions from some of the members of the so-called Cambridge Five spy ring have also been provided to ...

He was a member of the Cambridge Five spy ring and fled to Moscow with ... A Yardley talcum powder tin from 1960 used by one of the Portland spies to conceal microdot equipment.

These programmes examine the gradual exposure of the Cambridge Spies and reveal how the names Burgess, Philby, Maclean, Blunt and 'fifth man' Cairncross became synonymous with treachery at the ...

A passport belonging to one of the Cambridge spies, a 110-year-old lemon used for invisible ink and a letter about the ...