I just found this topic, so please excuse me if this has already been said.
As I've said in other posts, I think there is more to us than a physical body. For BIBLICAL and medical reasons, I think a human is not fully human until birth. Basically I think that somewhere around birth a soul is imputed by God to the baby. Until that happens the baby is only physical life, which must STILL be respected, but not neccessarily treated as a living person.
So although I think abortion later on in the pregnancy, may be wrong and disgusting, I cannot say that it is murder. Though I dislike it, I can't neccesarily say that a 1st trimester abortion is wrong, and in some cases I think it may be the right thing to do. However, the fact that most of the people who support abortion also ascribe to ideologies I strongly disagree with, makes me wonder if the predominant Christian viewpoint on abortion is actually right. Guilt by association in other words.
I am afraid that if abortion was made illegal it would result in a lot more babies dead and dying in trash cans, self-mutilated mothers, larger poverty-striken families, and some other disasterous side effects. I don't think making abortion illegal will do much to discourage lusty teens from having unprotected sex. I also don't think it will eliminate the practice by any means.
Abortion is a product of a dysfunctional society. Abortion should be eliminated by improving society and strengthening the core values and virtues in citizens so as to eliminate sexual immorality.
Anyway, thats my two cents.