Earlier this year, trawling round the net, I came across a new comic-book hero - Foreskin Man, an all-American, all-flying, all-powerful, muscle-man in tights. Blonde, square-jawed, and fully-foreskinned, he flies round the world with his companion Vulva Girl, rescuing infants from circumcision. The reason for all this was a referendum in San Francisco that proposed banning circumcision for under 18s except as a medical emergency. Some of the "for" people were behind the comic book, and it led to fierce discussion. "Stiff debate over circumcision rights" was how a Californian TV station put it.