I don't consider male circumcision to be genital mutilation in the same way that I consider female circumcision to be. Honestly, it's not the same. Female circumcision was (is) done because it was wrong for women to enjoy sex; because we are the weaker sex; because the men are important and the women are to be there for their men and for that only. Male circumcision was started around 2000 b.c. as a sign and seal of the covenant God made with Adam. Not because masturbation was wrong, not because it was "unsightly", not to lesson men's sexual pleasure. Just to separate God's children from those who weren't.
I grew up in a church where this practice was not only common, but was normal; was expected. I didn't question this for a long time, just like I didn't question a lot of what was "normal" within those walls. I was blind (but now I see! hah!) and that's just the way it was. That's all I knew, so it's what I believed. I had my first son at a very young age and didn't know what I was doing for the most part. He was circumcised at 8 days old by a Jewish pediatrician who did the procedure the "old fashioned" way. My husband held my sweet boy down while they sliced. I nearly fainted, and I wasn't the one going under the knife! Being so uneducated in parenting when he was little was rough (and obviously, it was rough for him too!) Thankfully, I had a good support system (aside from giving circ. advice, that is) and didn't vaccinate... but that's another topic for another day...
Now, years after the birth of my first son, I have another uncircumcised boy. I'm glad I was given the opportunity to do things better, but will always bear the guilt of inflicting that choice on my firstborn. Someday (probably sooner than I'd like), I'll have to explain to him what we did, why he and his brother are different.
I don't think (male) circumcision is *wrong*, but I think it is unnecessary. Why inflict that pain on your child if it isn't necessary?
Check out this blog. They have a better post on circumcision than I do, even if their feelings are a little stronger on the subject than mine.