It’s an odd thing to commemorate a day like World AIDS Day, during which time more than 1,000 babies will be born with HIV. World Vision’s 2011 World AIDS Day global theme is “Getting to Zero — Zero New Infections; Zero Discrimination; and Zero AIDS-related Deaths.” It’s an ambitious goal. But we at World Vision see this as a hopeful rallying cry, motivating us to remain true to our commitment to fight the HIV and AIDS pandemic. This year also marks 10 years since World Vision began its Hope Initiative, our groundbreaking effort to engage U.S. donors and churches around the tragic effects of the virus, especially in sub-Saharan Africa — the area hit hardest. (This region, which has only 12...