The Christian opposition to stem cell research is based on the idea that a single cell embryo is a potential human. That makes as much sense as considering sperm sacred. They too are potential humans. Both have a slim chance to grow into a human if implanted in a uterus. Surely using excess embryos for research is better than keeping them frozen for years then discarding them — the current practice. This is not an ethical problem; it is problem of religious superstition.
~ Roedy (born: 1948-02-04 age: 64)