John D. Axtell is Lynn Distinguished Professor of Agronomy at Purdue University. He received his B.S. (1957) and M.S. (1965) from the University of Minnesota and Ph.D. (1967) in the area of genetics from the University of Wisconsin. He has had a distinguished career as a plant geneticist and educator and is considered a global leader in sorghum nutritional quality research, particularly in protein quality and digestibility. He pioneered and led the discovery of naturally occurring high-lysine mutants of sorghum in a systematic survey of the world sorghum collection. He later produced high-lysine mutations through chemical mutagenesis and carried out an extensive breeding program to transfer the high-lysine gene in an array of genetic backgrounds. He is a member of the National Academy of Sciences (1982) and has served as Chairman of Class VI (1994–1997) and Section 62 (1987–1990) of the Academy. He is a member of the McKnight Foundation Collaborative Crop Research Program (1993–1999) and of the Raymond and Mary Baker Council for Excellence in Agronomy at Iowa State University. He has served on several review missions both for national research programs in various developing countries and a number of international research centers.

Harry Barnes is Director of the Conflict Resolution Program of the Carter Center and Chair of the Centers Human Rights Committee. He joined the Carter Center in 1994 as Director of its Conflict Resolution Program. He also oversees staff activities to promote human rights and prevent abuses and works closely with the center's International Human Rights Council. He was Ambassador to Romania from 1974 to 1977, Ambassador to India from 1981 to 1985, and Ambassador to Chile from 1985 to 1988 during the last years of the Pinochet regime. Among other assignments, he served as Director-General and Director of Personnel of the U.S. Foreign Service and as Deputy Executive Secretary for the Department of State. He began his 30-year career with the Foreign Service as an officer in Bombay, Prague, Moscow, Kathmandu, Bucharest, and Washington, D.C. He retired from the Department of State in 1988. He earned a bachelor's degree from Amherst College and a master's degree from Columbia University's Russian Institute.

Gail H. Cassell is Vice President of Infectious Diseases Research at Eli Lilly and Company, Lilly Research Laboratories, in Indianapolis. She was previously the Charles H. McCauley Professor and Chairman of the Department of Microbiology at the University of Alabama Schools of Medicine and Dentistry in Birmingham. A recent past president of the American Society for Microbiology, she just completed a three-year term as a member of the National Institutes of Health Director's Advisory Committee and as a member of the Advisory Council of the National Institute of



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