Date of Birth: 
About John D. Marks
- John D.
- Marks (born 1943) is the founder and former president of Search for Common Ground (SFCG), a non-profit organization based in Washington, DC that focuses on international conflict management programming.
- Marks now acts as a Senior Adviser to SFCG.
- He is also a former Foreign Service Officer of the U.S.
- Department of State and co-authored the 1974 controversial non-fiction book The CIA and the Cult of Intelligence with Victor Marchetti.
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