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Issue Mitigation Handbook
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about the author
William Henderson, author of Security Clearance Manual and Issue Mitigation Handbook, is a retired federal investigator who worked as a field agent and supervisor for the Defense Investigative Service (DIS) and its successor organizations, the Defense Security Service (DSS) and the Federal Investigative Services Division of the Office of Personnel Management (OPM) for over 20 years. He was previously an Army Counterintelligence Agent and a security manager at the Satellite Control Facilities Operation of Ford Aerospace & Communications Corporation.
He wrote his first personnel security investigation report in 1970 for the U.S. Army. His assignments included CI Special Operations in Japan and Korea, Source Administration in Vietnam, CI field office duty in Chicago, tactical CI operations in Colorado Springs, and a position on the J2 staff at CINCLANT.

While with DIS, DSS and OPM, he held positions of Special Agent, Senior Resident Agent, and Assistant Special Agent-in-Charge. His duty station was in Monterey, California where he conducted numerous security investigations of former Soviet Bloc Émigrés And Refugees. He also frequently conducted investigations in major metropolitan areas throughout the United States.
In June 2007 he wrote and published, Security Clearance Manual, the first book of its kind to explain the security clearance process and show applicants how to avoid the detours and roadblocks that normally delay a clearance application from a speedy and successfully conclusion. Since then he has published numerous articles on federal personnel security issues and processing. He has been interviewed and quoted in newspapers and radio programs. In March 2011 he wrote and published Issue Mitigation Handbook, to help clearance applicants with moderate to major suitability/security problems obtain the best possible results in the shortest possible time. This is the first book to ever address all three major federal personnel security programs--National Security Clearance, Federal Employment Suitability and Fitness, and Homeland Security Presidential Directive 12 Credentialing (often referred to as an NACI Clearance or CAC).
He has been a personnel security consultant since retiring from federal service in 2007. In 2012 he cofounded Federal Clearance Assistance Service (FEDCAS), a firm staffed with former DOD Security Clearance Adjudicators who provide personnel security clearance training and consulting services to individual and corporate clients.
The author welcomes all comments and questions regarding his books. He can be reached by snail mail at: Last Post Publishing, Attn: SCM Author, 1120 Forest Avenue PMB 274, Pacfic Grove, CA 93950 or by email at