Tune in as I have a detailed discussion about the U.S. Diplomatic Security Service (DSS) Counterintelligence (CI) Unit with Robert Booth. Robert is the author of the book: State Department Counterintelligence - Leaks, Spies and Lies. Robert served nearly 30 years with the DSS and was heavily focused on CI. He played a role in major CI cases including the investigation into Robert Hanssen, Kendall Meyers, and Donald Keyser. 

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