Book excerpt: What will it mean for society if science enables us to choose a future child whose health, athletic ability or intelligence is predetermined? This future is becoming ever more likely with the latest developments in human reproduction -- but concerns are growing about the implications. New procedures making possible heritable genetic modifications such as genome editing open the door to ‘sanitized’ selective eugenics; but these practices have some unnerving similarities to the discredited eugenic programmes of early twentieth-century regimes. A Christian perspective based on Scripture gives us the resources we urgently need to evaluate both current and future selection practices. Calum MacKellar offers an accessible, inter-disciplinary analysis, blending science, history and Christian theology. This book will enable you to become fully informed about the new scientific developments in human reproduction – developments that will affect us all.