# Edwin C. Fishel **Entity class:** Person **Domain:** Additional Article Entities ## Definition Historian and former NSA employee whose research examined Civil War intelligence estimates. The article cites his work for the relationship between Pinkerton's counting methods and McClellan's reported strength estimates. ## Operational role Named people and institutions make the article’s capacity relationships concrete. Authorship, sponsorship, employment, founding, procurement, and participation are different connections and must retain their specific meanings. These routes preserve the people and organizations behind the programs and operational examples. **Architecture connections:** [[wiki/Intelligence|Intelligence]] · [[wiki/OSINT|OSINT]] · [[wiki/HUMINT|HUMINT]]. ## Relationships - **article-linked mechanism or framework:** [[wiki/Intelligence-Estimate Inflation|Intelligence-Estimate Inflation]]. - **article-linked person:** [[wiki/George McClellan|George McClellan]]. - **collection route:** [[collections/The Civilian Intelligence Marketplace|The Civilian Intelligence Marketplace]]. - **counterterrorism architecture:** [[collections/Terrorism, Counterterrorism, and the Intelligence Environment|Terrorism, Counterterrorism, and the Intelligence Environment]]. - **source article:** [[articles/The Coming Market for Civilian Spycraft|The Coming Market for Civilian Spycraft]]. ## Sources / Provenance - [[articles/The Coming Market for Civilian Spycraft#IV. The Missing Link: Pinkerton, the Eye That Never Sleeps, and the Industrialization of Private Intelligence|The Coming Market for Civilian Spycraft — IV. The Missing Link: Pinkerton, the Eye That Never Sleeps, and the Industrialization of Private Intelligence]] — October 2026 revision; immediate source for this entry’s place in the marketplace. - [Wikipedia, Pinkerton (detective agency).](https://en.wikipedia.org/wiki/Pinkerton_(detective_agency)) - [Britannica, Allan Pinkerton.](https://www.britannica.com/biography/Allan-Pinkerton) - [Wikipedia, Allan Pinkerton.](https://en.wikipedia.org/wiki/Allan_Pinkerton) ## Connected marketplace roles The source article connects this entry with [[wiki/National Security Agency|National Security Agency]]. These routes locate the associated people, implementations, methods, and operational contexts in [[articles/The Coming Market for Civilian Spycraft|The Coming Market for Civilian Spycraft]]. **Collections:** [[collections/The Civilian Intelligence Marketplace|The Civilian Intelligence Marketplace]] · [[collections/Terrorism, Counterterrorism, and the Intelligence Environment|Terrorism, Counterterrorism, and the Intelligence Environment]].