Well and that is the question, isn't it. Is removing an implanted blob of cells "killing" in infant? No, it is not. This is where I disagree with the folks who are making the news these days. There are those who say that "every sperm is sacred" and so must be deposited in a fertile female, instead of into a sock. Framing the abortion of a nonviable fetus as murder is a way to make the argument visceral, and gets everybody's guts twisted. People vote on their guts far more often then on their minds, hence social conservatives have political ooomph. But allowing our guts to decide on important issues, without the application of the rational mind too all information available, is a recipe for a dysfunctional society. This battle between guts/instinct and brains/knowledge is central to our political stalemate.