S. Matthew Liao is the Director of the Bioethics Program at New York University. He is the editor-­in-chief of the Journal of Moral Philosophy, a peer­-reviewed international journal of moral, political and legal philosophy and has written on philosophy, morality, bioethics and human rights. Liao presents challenging ideas such as whether we should use drugs and technology to erase traumatic memories and employ human engineering as a possible, partial solution to climate change.