Twenty years' experience in international development. Former: Vice-President, Programmes, Micronutrient Initiative; Special Adviser on Africa to the G8; Director, Southern Africa, IDRC. Former member of the board, director, trustee, several development organizations. Former: Member, Committee on US Commitment to Global Health, Institute of Medicine; Vice-Chair, Global Agenda Council on Nutrition, and Member, Global Agenda Council on Global Food Security, World Economic Forum. Author of books on development in Africa.