Abstract
In exploring the concept of vulnerability, we do not begin with a blank slate. In research involving human subjects, ethics guidelines typically provide a rough definition of the concept. For example, the commentary on Guideline 13 in the International Ethical Guidelines for Biomedical Research Involving Human Subjects, issued by the Council for International Organizations of Medical Sciences (CIOMS), says that "vulnerable persons are those who are relatively (or absolutely) incapable of protecting their own interests. More formally, they may have insufficient power, intelligence, education, resources, strength, or other needed attributes to protect their own interests" (CIOMS 2002). Because the CIOMS guidelines ..