The question of stem cell research is complicated, no pun intended. Some say there have been cases of cancer where stem cells were used. Obviously not good. It's like Solomon suggesting he cut the baby in half to satisfy both women who claimed to be the mother. Everyone suffers. We need to do some long, hard praying about this. There should be some other way.
It's going to get a lot more complicated. Very soon, researchers will be turning adult stem cells into embryos which are clones of the adult donor, as a precursor to getting the cells to develop into specific organs or cell-types instead of into a whole baby. Those who try to turn this subject in a simple black-and-white issue are doomed to irrelevance.