STEPHEN LEWIS is the former UN Secretary-General's special envoy for HIV/AIDS in Africa and director of the Stephen Lewis Foundation. His previous roles include Canadian ambassador to the UN, special advisor on Africa to the UN Secretary-General, and deputy executive director of UNICEF. He was named "Canadian of the Year" by Maclean's magazine in 2003 and one of the 100 most influential people in the world by TIME magazine in 2005.