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William A. Davis, Jr., an independent consultant, retired as deputy program manager for ballistic missile defense (BMD) in 1982 following 33 years of government service. Today Mr. Davis serves as an independent consultant on technology matters relating to national missile defense (NMD) and BMD. His recent clients include the Joint Ballistic Missile Defense Office and the Army NMD Program Office. Mr. Davis's background is in tactical and strategic missile defense, as well as missile research and development. Upon retirement from the government, Mr. Davis served as vice president for space defense at Teledyne Brown Engineering, where he directed simulation and analysis of tactical warning/attack assessment network and space-based elements of the Strategic Defense Initiative. Mr. Davis has served on numerous government advisory and scientific boards, including Department of Defense task forces on tactical missile research and development.

Larry E. Druffel is president of South Carolina Research Authority, a public, nonprofit organization engaged in applying advanced technology to increase industrial competitiveness. Previously, he was director of the Software Engineering Institute and served as the vice president for business development at Rational Software. Earlier in his career, Dr. Druffel was on the faculty at the U.S. Air Force Academy. He later managed research programs in advanced software technology at DARPA, was founding director of the ADA Joint Program Office, and then served as director of computer systems and software (Research and Advanced Technology) in the Office of the Secretary of Defense. He is a fellow of the Institute of Electrical and Electronics Engineers (IEEE) and the Association for Computing Machinery (ACM).

Brig “Chip” Elliott is principal scientist at BBN Technologies. Mr. Elliott's background is in Internet and wireless network technologies, tactical communications systems, and space-based surveillance and communications. As the technical lead scientist at BBN, he uses Internet technology to build networks for international corporations and U.S. government agencies. He was the chief architect for the networking component of the Army's Near-Term Digital Radio Program, which forms the backbone of the Army's Tactical Internet; for the British Army's High Capacity Data Radio network; and for the Canadian Army's IRIS network. He has also acted as lead for a number of LEO satellite systems (Discoverer II, SBIRS-low, Celestri) as well as a proposed undersea network.

Frank A. Horrigan retired from the Technical Development Staff for Sensors and Electronic Systems at Raytheon Systems Company. Dr. Horrigan has a broad general knowledge of all technologies relevant to military systems. A theoretical physicist by training, he has more than 35 years of experience in advanced electronics, electro-optics, radar and sensor technologies, and advanced information systems. In addition, he has extensive experience in planning and



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