For precision medicine to work, it must include a diversity of people who can access it and take advantage of its benefits–something that’s not guaranteed. We asked Dr. Maya Sabatello, assistant professor of clinical bioethics, Department of Psychiatry, and co-director of the Precision Medicine: Ethics, Politics, and Culture project at Columbia University, to give us an overview of some of the ethics of access issues in personalized medicine. She talks about the importance of collecting diverse data, whose responsibility it is to make sure that happens and how holding people accountable for their health decisions expands the conversation beyond health care.