This story demonstrates the dangers that are out there in stem cell land for the unwary. A Las Vegas doctor has been treating people with serious illnesses, such as MS, with stem cells from placenta and other non embrynic sources. These have great potential for future therapies. But, such treatments mostly remain at the experimental level, and in any event, should only done under proper research protocols and in accordance with ethical medical practices. I mean, the doctor in question is an opthamologist! He has no business treating people with serious neurological conditions regardless of the efficacy of the chosen medium.