Do you think people get confused between obtaining stem cells from un-needed embryos, bone marrow, and now umbilical cord blood? Is the confusion understandable, or is at all the same science?
There is confusion as to the sources of stem cells and these sources are very different. Embryonic stem cells are a completely different set of cells compared to umbilical cord blood stem cells and they are regulated by the government. At the scientific level the concepts are similar but embryonic stem cells raise many legal, ethical and moral questions which umbilical cord stem cells do not.