In this talk, Prof. Peter Sandøe argues that, from an ethical viewpoint, gene editing is the best solution to produce hornless cattle. There are, however, regulatory hurdles. Presented at the workshop 'Gene Editing and Animal Welfare, 19 Nov. 2019, Oxford - organised by the Oxford Uehiro Centre for Practical Ethics, funded by the Society for Applied Philosophy. Creative Commons Attribution-Non-Commercial-Share Alike 2.0 UK: England & Wales; http://creativecommons.org/licenses/by-nc-sa/2.0/uk/