By Gordon Corera
The tape is of Kim Philby giving a secret lecture to the Stasi, the East German Intelligence Service, in 1981. It is the first time the ex-MI6 officer can be seen talking about his life as a spy from his recruitment to his escape.
Phi Beta Iota: 3 bottom lines: never confess; their arrogance and selfishness is their biggest weakness; stealing documents is easy when no one keeps track of who sees what. BBC provides a text summary of key points in the video as well as the video itself.