Well, after many years, two studies have shown that circumcision reduces AIDS transmission by about 60%. There has been anecdotal data for years.
This answers a question I’ve always had, why is the US AIDS rate relatively low when the US public health infrastructure sucks, and you have Talibaptists everywhere campaigning against condoms?
The answer is dumb luck. Through historical accident, the US probably has the highest circumcision rate this side of Israel (Moslems do it too).
Unfortunately, studying wasn’t enough. It wasn’t until last March, when the National Institutes of Health stopped the African circumcision trials—it was no longer ethical to continue them, because circumcision was clearly beneficial—that the World Health Organization and other agencies did an about-face.