This 3rd edition of Food and Agricultural Biotechnology in Ethical Perspective updates Thompson’s analysis to reflect the next generation of biotechnology, including synthetic biology, gene editing and gene drives. The first two editions of this book, published as Food Biotechnology in Ethical Perspective in 1997 and 2007, were the first comprehensive philosophical studies of genetic engineering applied to food systems. The book is structured with chapter length treatments of risk in four categories: food safety, to animals, to the environment and socio-economic risks. These chapters are preceded by two chapters providing orientation to the uses of gene technology in food and agriculture, and to the goals, methods and background assumptions of technological ethics. There is also a chapter covering all four types of risk as applied to the first US technology, recombinant bovine somatotropin. The last four chapters take up 1) intellectual property debates, 2) religious, metaphysical and “intrinsic” objections to biotechnology, 3) issues in risk and trust and 4) a review of ethical issues in synthetic biology, gene editing and gene drives, the three key technologies that have emerged since the book was last revised.