This document summarizes key concepts around making ethical choices related to criminal justice, terrorism, and war. It discusses debates around just war, responses to terrorism, and ethical justifications for limiting civil liberties and using torture. Specifically, it contrasts crime control and utilitarian approaches that emphasize ends over means with rights-based standards that emphasize due process and inalienable rights. Examples are provided of controversial policies and practices implemented after 9/11 and their impacts on privacy, detention, and surveillance. Ethical dilemmas around coercing confessions and "dirty Harry" reasoning are also examined.