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Reports on the President's Council on Bioethics and its white paper "Alternative Sources of Human Pluripotent Stem Cells," in light of research in South Korea that developed a method for creating embryos with cloning. The U.S. stance on federal funding on stem cell research; Methods the council considered to generate stem cells; The debate over ethical and scientific issues related to embryonic stem cell research; Views of council members, including Janet D. Rowley; The pros and cons of blastomere extraction and other approaches for deriving stem-cell lines.