What Is a Manganese Nodule?

A top secret mission to the bottom of the Pacific Ocean. A legendary CIA officer who postponed retirement to lead the Agency's response to 9/11. An entire building turned into a listening post. Where can you find artifacts from these chapters of hidden history and many more? The museum at the heart of CIA Headquarters. Since this museum is not open to the general public, in this episode of The Langley Files, Dee and Walter catch up with the museum's director and deputy director for a behind the scenes tour ... podcast-style. *Nothing in this podcast should be construed to be an endorsement by the CIA or the US Government of any particular company, product, or service.