A groundbreaking new exploration of the promises and perils of biotechnology -- and the future of American society.

Biotechnology offers exciting prospects for healing the sick and relieving suffering. But because our growing powers also enable alterations in the workings of the body and mind, they are becoming attractive to healthy people who would just like to look younger, perform better, feel happier, or become more "perfect."

This landmark book -- the product of more than sixteen months of research and reflection by the members of the President's Council on Bioethics --...