Bill and Melinda Gates speak about global health (20 images)

Melinda Gates speaks to an audience gathered at the Sidney Harmen Hall in Washington on global health initiatives on October 27, 2009. Gates, who co-chairs the Bill and Melinda Gates Foundation, spoke about the Foundation's Living Proof Project, which reports on successful cases of U.S.-funded international health programs. UPI/Alexis C. Glenn

Bill Gates speaks to an audience gathered at the Sidney Harmen Hall in Washington on global health initiatives on October 27, 2009. The Gates, who co-chairs the Bill and Melinda Gates Foundation, spoke about the Foundation's Living Proof Project, which reports on successful cases of U.S.-funded international health programs. UPI/Alexis C. Glenn

Bill Gates watches a video presentation to an audience gathered at the Sidney Harmen Hall in Washington on global health initiatives on October 27, 2009. Gates, who co-chairs the Bill and Melinda Gates Foundation, spoke about the Foundation's Living Proof Project, which reports on successful cases of U.S.-funded international health programs. UPI/Alexis C. Glenn

Bill Gates speaks to an audience gathered at the Sidney Harmen Hall in Washington on global health initiatives on October 27, 2009. Gates, who co-chairs the Bill and Melinda Gates Foundation, spoke about the Foundation's Living Proof Project, which reports on successful cases of U.S.-funded international health programs. UPI/Alexis C. Glenn