Just read this story on BBC:
http://news.bbc.co.uk/2/hi/health/6176209.stm
It's about a couple of studies which confirm an earlier finding that circumcision reduces the risk of infection of HIV.
But that's not why I posted it here.. the expert the BBC quotes is a certain
Dr Kevin De rooster, director of the HIV/Aids department of the World Health Organization told the BBC the results were a "significant scientific advance" but were not a magic bullet and would never replace existing prevention strategies.
...
Dr De rooster said that countries in Africa who wanted to use this approach would still have to decide what age groups to target and there would have to be training and hygienic practices in place.
Cheers,
Shafique