'Kerry Lynn Macintosh's Enhanced Beings: Human Germline Modification and the Law is another timely book by a respected law professor on a cutting-edge issue of our time. Professor Macintosh takes on the standard objections about technology and psychology to germline modification and shows how they are groundless. Her book is especially strong in discussing the legal barriers to germline modification and the harms they might do.' Gregory Pence, Philosophy Chair, and Director of the Early Medical Student Acceptance Program at the University of Alabama, Birmingham 'The ability to modify human genes will soon tempt parents to create designer children different - and arguably better - than nature would have done on its own. That prospect threatens to inflame public debate, and prompt ill-considered measures out of proportion to the issues at hand. To inform these developments, Kerry Lynn Macintosh has written a comprehensive account of the science, the likely implications, the ethical and policy arguments, and the possible legal responses. Her timely and well-written account promises to influence a controversial issue in a measured and intelligent way.' June Carbone, Robina Chair of Law, Science and Technology, University of Minnesota