The Thing, also known as The Great Seal Bug, was a passive covert listening device, developed in the Soviet Union and planted in the study of the US Ambassador in Moscow, hidden inside a wooden carving of the Great Seal of the United States. It is called a passive device as it does not have its own power source. Instead it is acivated by a strong electromagnetic signal from outside. The device was code named LOSS by the US and RAINDEER by the Soviets.
On 4 August 1945, the Vladimir Lenin All-Union Pioneer organization 1 presented a hand-carved replica of the Great Seal of the United States to US Ambassador Averell Harriman, as a gesture of friendship to the USSR’s World War II ally. It hung in the library at the Residency Spaso House.
Unknown to the Americans however, the carving contained an HF radio bug of a novel design, in that it didn’t have…
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