Declaring that "life is a creation, not a commodity," President Bush on Wednesday called on the Senate to pass legislation banning all human-embryo cloning. "Advances in biomedical technology must never come at the expense of human conscience," Bush told a gathering of cloning opponents invited to the White House's gilded East Room for the speech. His remarks follow the publication of a letter signed by 40 Nobel laureates advocating therapeutic cloning and warning that the legislation at issue would ill-effect scientific research in the United States. "We decided to speak out to clear up the confusion that has arisen about this issue. Cloning humans and `therapeutic cloning' (or nuclear transplantation technology) are fundamentally different," said Nobel Prize winner Paul Berg. "The cloning of a human being should be prohibited. Nuclear transplantation technology, on the other hand, is meant to produce stem cells, not babies." Comments?