Bioethics is the study of ethical issues arising out of advances in the life sciences and medicine. Historically, bioethics has been associated with issues in research ethics and clinical ethics as a result of research scandals such as the Tuskegee Syphilis Study and public debates about the definition of death, medical paternalism, health care rationing, and abortion. As biomedical technologies have advanced, challenging new questions have arisen for bioethics and new sub-disciplines such as neuroethics and public health ethics have entered the scene. This volume features ten original essays on five cutting-edge controversies in bioethics written by leading philosophers. I. Research Ethics: How Should We Justify Ancillary Care Duties? II. Clinical Ethics: Are Psychopaths Morally Accountable? III. Reproductive Ethics: Is There A Solution to the Non-Identity Problem? IV. Neuroethics: What is Addiction and Does It Excuse? V. Public Health Ethics: Is Luck Egalitarianism Implausibly Harsh? S. Matthew Liao and Collin O’Neil’s concise introduction to the essays in the volume, the annotated bibliographies and study questions for each controversy, and the supplemental guide to additional current controversies in bioethics give the reader a broad grasp of the different kinds of challenges in bioethics.