The devastation across the globe left by AIDS, malaria, tuberculosis, the sheer number of those infected and dying is almost beyond comprehension. Suffering on the African continent has been especially great. AIDS alone has left at least 11 million orphans in sub-Sahara Africa. In several African countries, as many as half of today's 15-year-olds could die of AIDS. In a part of the world where so many have suffered from war and want and famine, these latest tribulations are the cruelest of fates.