Over the past seventy-five years, the United States has developed an insatiable appetite for global surveillance. The stories exposed by Edward Snowden in 2013 were only the tip of the mountain: the CIA had been spying on the world for decades.

For more than half a century, a Swiss‑based firm called Crypto AG built encryption machines and sold them to governments around the world. But what its customers didn’t know was that the firm was secretly owned and controlled by the CIA. This is a story of deception, code breaking and the invisible ear listening into the world's secrets.

Listen as David and Gordon delve into the recently exposed story of Crypto AG and how the CIA, and their German counterparts, pulled off the intelligence coup of the twentieth century.

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Order a signed edition of Gordon's latest book, The Spy in the Archive, ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠via this link.⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠

Order a signed edition of David's latest book, The Seventh Floor, ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠via this link.⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠

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Email: [email protected]

Twitter: ⁠⁠⁠⁠⁠⁠⁠@triclassified⁠⁠⁠⁠⁠⁠⁠

Social Producer: Emma Jackson

Producer: Becki Hills

Head of History: Dom Johnson

Exec Producer: Tony Pastor

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