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Key Takeaways
- Soviet intelligence agencies such as the NKVD, KGB, and GRU infiltrated American institutions to gather political, military, and technological intelligence.
- The Manhattan Project was penetrated by operatives who accelerated the Soviet Union’s development of nuclear weapons.
- Espionage networks extended into journalism, federal agencies, and high-level economic policy circles.
- The Venona Project uncovered Soviet codebreaking vulnerabilities and revealed numerous covert agents.
- Defections and investigative breakthroughs significantly weakened Soviet spy operations in the United States.






