He was selected from the elite to become a Paramilitary Operations Officer in the CIA's famed Special Activities Division in 1960.

Lynch received a BA degree in political science from the University of Maryland, College Park in 1953.

Lynch did this because from his perspective the mission was going wrong from the beginning: the second round of aerial bombardments that had been promised from Operation Puma had not hit their intended targets in support of Operation Pluto,[5] naval assets were lost, and he was informed by Washington that Cuban air forces still had air superiority.

[6] In an interview with Bill Moyers and George Crile, Lynch said: "We were hit just after daylight by [Castro's] planes.

When asked the specific number of raids he embarked upon, his response was: "This was spread over many years that we had — other captains have had, I don't know, maybe 100.

[2] However, an arrangement was eventually made where a countersign passphrase was issued in a sealed envelope to Mongoose operators.

[citation needed] Lynch was recruited by Lucien Conien into Bureau of Narcotics Counter-Intelligence Network (BUNCIN), later renamed DEA Clandestine Operations Network (DEACON) after the Bureau of Narcotics and Dangerous Drugs (BNDD) was renamed Drug Enforcement Administration (DEA).

Lynch had been running secret CIA operations in Cuba, Central and South America for many years and developed numerous clandestine resources.

[7] Lynch wrote a book, Decision for Disaster: Betrayal at the Bay of Pigs, based on his experience leading the rebel Brigade 2506.