I’ve been trying to get this point across the anti-embryonic stem cell contingent on FR a few years now. As soon as any stem cell from any source is perfected as a therapeutic tool, it will also be capable of being turned into a viable embryo. Cells are made of specific molecules in specific arrangements, and science is progressing very rapidly in its ability to rearrange the molecules in any way that’s wanted. A stem cell that can be coaxed to develop into a replacement heart OR kidney OR liver OR pancreas can also be coaxed to develop into ALL of those along with all the other parts of normal living body. In the end, it makes no difference whether the starting cell came from an embryo or from umbilical cord blood or from adult skin.
BTW, if the objective is to get stem cells that can be used to repair/grow/replace specific organs, or organ systems, why would we wish to reset a cell all the way back to the embryonic level? Wouldn't we be happy to have the stemcells specific to the organ in question?