What would the reaction of the international public health community have been if a year ago scientists had announced the discovery of a vaccine or chemical gel that, in three separate clinical trials, had reduced the risk of heterosexual HIV infection in men by at least 60%? Considering that even with increasing access to antiretroviral therapy AIDS continues to be a huge killer -every day over 2,000 men become infected with HIV in sub-Saharan Africa alone [1], which eventually also results in millions of new cases in their partners and children -would not such an announcement have surely sparked a massive surge of excitement and renewed investment in HIV prevention?In fact, in December 2006 officials from the US NIH did announce the discovery of an intervention at least as effective, for heterosexual transmission, as the long hoped for AIDS vaccine. However, unlike many previous breakthroughs in medicine, this time the intervention was not discovered by a team of scientists toiling in academic or government laboratories. Rather, some two decades ago anthropologists, demographers and epidemiologists initially