I have been having a rather heated discussion with Brian Westley on OTDs blog post about circumcision here.
While I don't believe that circumcision has any superstitious benefits, I do believe it does have real social ones, namely avoidance of ostracism from within the Jewish community for your child (if you wish to be a part of the Jewish community). Also there isn't a reverse ostracism from outside the Jewish community either (having a circumcision is very common for non Jews as well). Since I don't think that the costs are too significant (mild memoryless pain for a short while, recovery in about a week) I think it should be up to the parents to decide whether or not their son should get one as an infant and shouldn't be banned universally.
What do you think?