The achievements of medical science in the last years of the twentieth century are staggering. From research on human embryos to the commercialization of life, from genetic testing to genetically engineered foods, from organ transplants to assisted suicide and euthanasia, medical technology now touches us intimately at every stage of our lives. We now have the unprecedented power to create, manipulate, and alter human life in the laboratory. Our very definitions of who we are and what it means to be human are challenged.
How do we balance the ability of science and technology to...