Human embryos, it has been said, ""have no muscles, nerves, digestive system, feet, hands, face, or brain; they have nothing to distinguish them as a human being, and if one of them died, no one would mourn as they would for one of us."" Consequently, early human embryos are being dismembered in laboratories around the world to produce embryonic stem cells, which, we are told, are the tools that will lead to the next quantum leap in medicine. Should...