6 Daring Double Agents - HISTORY
Revealed: Nazi spy was UK's first double-agent
Obituary: George Blake, Cold War double agent | The Scotsman
How likely is it that the US has spies in Britain, and that Britain has spies in the US? - Quora
U.S. to Impose New Sanctions on Russia Over Nerve-Agent Attack in U.K. - WSJ
The Spies Who Came In From the Continent – Foreign Policy
British double agent George Blake dies in Russia at 98
Eddie Chapman - Wikipedia
Cold War Spies: Who Were The Agents Who Turned Traitor, And Why? | HistoryExtra
The Greatest Double Agent in History - Priceonomics
US embassy hires security firm of former Russian spy who worked with Putin
Kim Philby - Wikipedia
Did Putin order the Salisbury hit?
WWII Double Agent, Spy for the British and the Nazis - YouTube
Infamous KGB Double Agent George Blake Dies At 98 : NPR
Double Agent: The First Hero of World War II and How the FBI Outwitted and Destroyed a Nazi Spy Ring: Duffy, Peter: 9781451667967: Amazon.com: Books
Thirty Years Later, We Still Don't Truly Know Who Betrayed These Spies | History| Smithsonian Magazine
The Spies Who Came In From the Continent – Foreign Policy
Who was Kim Philby? As his story is retold in A Spy Among Friends, how the public school boy turned KGB double agent | Tatler
/https://tf-cmsv2-smithsonianmag-media.s3.amazonaws.com/filer/26/46/2646e6de-66d7-4034-8888-a108c3c6e7f6/guy_burgess.jpg "The Student and the Spy: How One Man's Life Was Changed by the Cambridge Five | Articles| Smithsonian Magazine")
The Student and the Spy: How One Man's Life Was Changed by the Cambridge Five | Articles| Smithsonian Magazine
The Spy with 29 Names review – enthralling tale of a wartime double agent | Biography books | The Guardian
6 Daring Double Agents - HISTORY
German 'double agent' is arrested on suspicion of spying for the U.S. | Daily Mail Online
Infamous KGB Double Agent George Blake Dies At 98 : NPR
Infamous KGB Double Agent George Blake Dies At 98 : NPR
Famous American Double Agents
