"My position is easy to explain: An embryo is not a human, or even close to being one. So I have no problem with using -- and destroying -- these specks of cells for research. And if Harvard University wants to make the cells through therapeutic cloning, that too is fine with me.
Others disagree. They see embryos as inviolable human life. This view deserves respect, but anyone who holds it must follow the argument to its logical end. If scientists have no moral right to destroy a fertilized egg, then neither should fertility clinics, which routinely discard unused embryos.
No 'pro-life' politician has had the guts to shut down fertility clinics. Nor has anyone proposed requiring that every embryo created by in-vitro fertilization be implanted in a woman's womb -- and brought to full term as a baby."