American Bioethics continues my exploration of the relationships between bioethics and law begun in Standard of Care: The Law of American Bioeth- ics and continued in Some Choice: Law, Medicine, and the Market. As with these earlier works, I benefited greatly from conversations, debates, com- ments, and criticisms of my colleagues in the Department of Health Law, Bioethics and Human Rights at the Boston University School of Public Health, most especially Leonard H. Glantz, Michael A. Grodin, Wendy K. Mariner, and Winnie Roche. We have been together for almost two de- cades, during which time we have together explored and crossed tradi- tional academic boundaries, including those combined in.