Battle Over the Knife

Medical researchers debate the wisdom -- or folly -- of mass-circumcision campaigns as a way to prevent HIV transmission in Africa

Table and map: Rates of HIV infection and of circumcision in Africa, by country

During the past century and a half, various medical scholars have asserted that male circumcision has many benefits. Here, in ascending order of plausibility, are some of the ailments that circumcision has

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