Literary references to Cold War moles and NSA criticism

Literary references to Cold War moles and NSA criticism The passage only cites historical novels and past espionage cases without providing new, actionable information about current actors, transactions, or misconduct. It offers no concrete leads for investigation. Key insights: Quotes Edward Snowden criticizing the NSA in 2015.; References John le Carré's novels and the real KGB mole Heinz Felfe.; Mentions the concept of long‑term intelligence moles.