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Hi. I am Art Caplan, from the NYU Langone Medical Center, Division of Medical Ethics. What is going on in the field of regenerative medicine with respect to stem cell research? We have recently had yet another in a long series of scandals involving claims about the ability to manipulate stem cells in ways that turned out to be utterly untrue and fraudulent. In this case, a scientist in Japan said that she was able to make adult stem cells revert to embryo-like stem cells with some pretty simple chemical exposures. It was announced in leading journals and covered extensively by the media. Then she had to admit that no one could duplicate what she had done and confessed that she had made it up. This is not the first time that this has happened in the stem cell field. Going back all the way to right after Dolly the sheep was cloned, people were trying to clone human embryos to see if they could get cloned human embryos from stem cells. A group in Korea announced that they had made the first cloned human embryos. Nobody could replicate what they did, and they ultimately had to retract their claims published in leading scientific journals that they had cloned human embryos. Stem cell research seems again and again to go off the rails when it comes to the ethics of research. What is going on and why is that so? I think there are a couple of reasons why this particular area has gotten itself in so much hot water. One is that there is a relative shortage of funding. Because of the controversial nature of cloning -- getting stem cells from human embryos -- some avenues of funding have dried up, and it puts pressure on people to come up with other ways to try to make human stem cells. With less funding, there is more pressure. Sometimes people cut corners. I think that can l