Medical Research Institute of Infectious Diseases (USAMRIID) in 1972 and served as its Plans and Programs Officer until 1984, reporting directly to the commander. He participated in the planning, directing, coordinating, evaluating and reporting on a broad, complex program of medical defense against bio-agents. In 1984, he was promoted to one of the most senior civilian positions at USAMRIID as Program Analysis Officer, a position he held until his retirement in 1986. In retirement After leaving his government job, Patrick was a consultant to the U. S. Government and private organizations. He performed services on a contractual basis to Defense Intelligence Agency, Armed Forces Medical Intelligence Center, Central Intelligence Agency, USAMRIID, Federal Bureau of Investigation, United States Secret Service, and many other institutions through his own firm, Biothreats Assessment. These services include 1) lectures on agent-munitions weaponization, agent characteristics, aerosol technologies, etc.; 2) mathematical modeling of agents to illustrate target coverage; 3) biodefensive and biosafety lectures; 4) analytical studies of agents and their potential; and 5) lectures on bioterrorism. Patrick's BW experience provided significant insights into Iraq's BW program. On the UNSCOM 78 trip to Iraq (1994), his observations on how process equipment was being used at the Al Hakum facility provided the nearest thing to a "smoking gun" for Iraqi intent until they themselves declared an extensive BW program in 1995. He then continued to present lectures on the History of Biological Warfare; Bio-Agents; Munition Weaponization; Aerosol Technology; Agent Modeling; Biosafety; Biodefense; and BW Terrorism. He appeared on all of the major U.S. television networks as well as the Canadian Broadcasting Corporation, the BBC, PBS, the History Channel, The Learning Channel, and the Discovery Channel. In his last years, Patrick gave numerous guest lectures at venues such as the National War College, Army War College, Air War College, MIT, Centers for Disease Control and Prevention and the National Academy of Sciences. Patrick married his second wife, Virginia, in July 1972. He had two sons from his first marriage and two stepchildren. He died from bladder cancer on 1 October 2010. Works Patrick held five U.S. patents pertaining to biological processes and equipment, and authored 16 articles in scientific journals, as well as 98 in-house Department of the Army publications. Patrick, William C. (1994), "Biological Warfare: An Overview" In: Director's Series on Proliferation, Livermore, California: Lawrence Livermore National Laboratory. Patrick, William C. (2001), The Threat of Biological Warfare, for the