Drones have become an essential part of US national security strategy, but most Americans know little about how they are used. In Drones and the Ethics of Targeted Killing (Rowman & Littlefield Publishers, 2015), Associate Professor of Theology Kenneth R. Himes, OFM provides not only an overview of the role of drones in national security but also an important exploration of the ethical implications of drone warfare—from the impact on terrorist organizations and civilians to how piloting drones shapes soldiers. Fr. Himes leads readers through the ethics of targeted killings in history from ancient times to the contemporary Israeli-Palestinian conflict, then looks specifically at the new issues raised through the use of drones. Fr. Himes is moral theologian whose previous publications include Christianity and the Political Order, Modern Catholic Social Teaching, and Responses to 101 Questions on Catholic Social Teaching.