I Glenn Cohen1, Julian Savulescu2, Eli Y Adashi3. 1. Harvard Law School, Petrie-Flom Center for Health Law Policy, Biotechnology, and Bioethics, Harvard University, Cambridge, MA, USA. igcohen@law.harvard.edu. 2. Oxford Uehiro Centre for Practical Ethics, University of Oxford, Oxford, UK. 3. Warren Alpert Medical School, Brown University, Providence, RI, USA.