The Economist covers research regarding male circumcision

This article is not necessarily for the faint of the heart and is clearly slanted against circumcision. It also discusses more dramatic "male-genital mutilation." However, it is also the first article I've seen that approaches the topic from an evolutionary biology perspective. The Economist article summarizes and discusses research from Christopher Wilson, a neurobiologist at Cornell University. Without judgment, here is the link: The Economist