The last months of 2015 brought genetic engineering back to the front pages with several major news stories, particularly the FDA’s approval of genetically engineered salmon and breakthroughs in the use of Crispr-Cas9 (a gene-editing technology). Often when I talk to people about my research, they want to know if GMOs are safe to eat, but the debate over GMOs – and genetic engineering more broadly – is much bigger than questions of scientific risk assessment and management. These two recent stories highlight how much the debate focuses on questions of ethics too. I’ve talked a little about Crispr before, so let’s turn to genetically engineered (GE) salmon. Scientists have been working on GE salmon for over two decades, however…