Opponents to such research have argued that such embryos are human lives with the full rights of humans and that even if they are not human lives the slippery slope is too great. Furthermore, they argue that the sanctity of human life is so great that even the destruction of such embryos for research is not permissible even when they would be destroyed anyways. Opponents have also argued that the potential of embryonic stem cells have been exaggerated and that more research must be done with cord and adult stem cells.<ref>http://www.americancatholic.org/News/StemCell/</ref>, <ref>http://www.foxnews.com/story/0,2933,31748,00.html</ref>, | Opponents to such research have argued that such embryos are human lives with the full rights of humans and that even if they are not human lives the slippery slope is too great. Furthermore, they argue that the sanctity of human life is so great that even the destruction of such embryos for research is not permissible even when they would be destroyed anyways. Opponents have also argued that the potential of embryonic stem cells have been exaggerated and that more research must be done with cord and adult stem cells.<ref>http://www.americancatholic.org/News/StemCell/</ref>, <ref>http://www.foxnews.com/story/0,2933,31748,00.html</ref>, |