Mark Kelton is a retired senior Central Intelligence Agency (CIA) executive with 34 years of experience in intelligence operations. He concluded his career as Deputy Director of the National Clandestine Service for Counterintelligence (DDNCS/CI), one of the most senior ranking positions in the Clandestine Service. Directing CIA’s counterintelligence and counterespionage programs, Mr. Kelton led the team that protected the nation’s most closely guarded secrets. Mr. Kelton has comprehensive expertise in the detection of insider threats, assessments of counterintelligence risk, and crisis management. Mr. Kelton’s distinguished career included sixteen years of overseas service, to include four assignments in key CIA field leadership positions.