How do we stop trafficking in human organs? Can we choose the sex of our children, or the colour of their eyes? Is pre-implantation diagnosis tantamount to eugenics? Will insurance companies have access to the results of genetic tests? All these questions and many others have arisen from the spectacular advances made in biology and medicine. More than ever, these sciences are a source of great hope mingled with a degree of fear. For the first time, a book sheds light on these issues beyond a national perspective. In a clear, accessible journalistic style, generously illustrated with examples, the two authors report on the variety of responses found in each country and on the harmonisation work done in Europe.