Mary, I don't agree. A disabled or mentally ill person cannot be cast in the same category as a living stem cell. They are living and breathing beings with feelings and abilities they call their own. What plagued Europe in the past was the ultimate wrong, from warped minds that had zero respect for the living and breathing and suffering. Should scientists be cast in the same conscience under an uglier name. That would be the purest insult to those dedicated to helping people regain back their lives. I never met Mo Udall but like many know his story. At his final days lying immobile unable to talk, to swallow....imprisoned in his own body. What were his final thoughts......what were the stem cell's? Surely, you cannot cast Mo as rich in his moment. Cruel unwarranted imprisonment should never be tolerated. Stop PD.