Fascinating tale of utter failure.
Gordon Corera at BBC
Kim Philby, British double agent, reveals all in secret video
A previously unseen video of one of Britain's most infamous spies describing his career as a Soviet agent has been uncovered by the BBC.
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.
He describes his career rising up the ranks of MI6 whilst providing its secrets to the Soviet Union's KGB.
He ends with advice to the East German spies.
With those two words spoken in an impeccable upper-class English accent, one of Britain's most famous spies and its greatest traitor begins a masterclass in betrayal to a select audience of East German spies.
Philby's hour-long address was preserved on video tape and never seen in public until now.
The BBC unearthed it in the official archives of the Stasi in Berlin.
It was never made for public consumption (and the grainy video and poorly synchronised sound shows the....