Cooperation in evil or wrongdoing is one of the most perplexing areas in bioethics, both for those working in the field and those seeking their advice. This book includes both general treatments of the subject of complicity and conscientious objection, and more specific treatments of topics such as voting to improve unjust laws, research on fetal/embryonic cells, and care of suicidal patients. Contributors include philosophers, theologians and lawyers who have studied these problems, and those who have faced these problems in their own work in law, healthcare and research, and political campaigning.