The chapters in this volume provide the basis for an ethical foundation and framework for the various roles and responsibilities of operational psychologists. It is evident that operational psychologists experience special demands and bear social responsibilities in providing services in difficult and demanding nontraditional settings. Therefore, psychologists must find a way, as did the founding members of the profession, to reconcile the science, practice, law, and ethics with national security threats posed by avowed enemies of our way of life (Yerkes, 1918).A code of ethics cannot anticipate all the ethical concerns that psychologists may face and reflects the reality that practical issues may arise that result in a conflict between the law and ethics (Knapp & VandeCreek, 2003. Indeed, the American Psychological Association's "Ethical Principles of Psychologists and Code of Conduct" (APA Ethics Code; APA, 2010a) anticipates this conflict. Standard 1.02, Conflicts Between Ethics and Law, Regulations, or Other Governing Legal Authority, which was amended