Below is a hand-carved Great Seal of the United States, presented to US Ambassador W. Averell Harriman by Soviet school children in 1946. In 1952, a security check of the Moscow embassy revealed a microphone hidden inside the eagle's beak. Whenever they suspected an important meeting was going on, the KGB would park a van outside and send a microwave beam through the ambassador's office, energizing the mic and allowing them to receive its signals.
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