Joint United Nations Programme on HIV/AIDS (UNAIDS) Executive Director Michel Sidibe (L) talks to U.N. Secretary General Ban Ki-moon during a news conference in Kenya's capital Nairobi, March 31, 2011, after outlining new recommendations to reach the 2015 goals for the AIDS epidemic response. Discrimination, stigma and gender inequality are threatening to undermine progress in the fight against HIV/AIDS, 30 years after the deadly virus took its first toll, the U.N. chief said on Thursday. REUTERS/Thomas Mukoya (KENYA - Tags: POLITICS HEALTH)