BIOETHICS:
Cloning Announcement Sparks Debate and Scientific Skepticism
Eliot Marshall and Gretchen Vogel
WASHINGTON, D.C., AND BERLIN--A small U.S. biotech firm made headlines around the world last week when it announced that it had cloned several human embryos for transplantation research, prompting strong reactions. President George W. Bush denounced the research as unethical, European leaders discussed national controls on cloning, and the furor could spur efforts to pass a law in the United States that would ban research on human cloning. All this fuss over results whose scientific significance is questionable: Some scientists note that the six-cell clusters created by ACT barely qualify as embryos.