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Espionage activities during the Cold War, including the involvement of various intelligence agencies and individuals.
Sleeper agents have been a recurrent instrument of statecraft from the 20th century to today, used most prominently by Soviet and Russian services but also deployed or feared from Western intelligence...
has been widely alleged to have cooperated with the during the , a claim grounded in his frequent contacts with Soviet officials, publishing work that reached behind the Iron Curtain, and testimony fr...
Modern intelligence “sting” and counterintelligence operations span arrests of insider spies, covert sabotage and targeted operations abroad, and open-source unmaskings enabled by cameras and travel r...