They Experimented on Themselves in Secret. What They Discovered Helped Win a War

The untold, top-secret story of the British researchers who found the key to keeping humans alive underwater—and helped make D-Day a success.

They Experimented on Themselves in Secret. What They Discovered Helped Win a War
The untold, top-secret story of the British researchers who found the key to keeping humans alive underwater—and helped make D-Day a success.
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