He says this particular killing was justified and borne out of a rational decision-making process. American University Washington College of Law professor Kenneth Anderson distinguishes the use of military drones from targeted killing in his article "Efficiency in Bello and ad Bellum: Making the Use of Force Too Easy?". He says targeted killing as response to threats and to prevent potential terrorist attacks is justified. The final portion of the book analyzes consequentialism within the scope of normative ethics and deontological ethics. Florida State University Tobias Simon Eminent Scholar Fernando Tesón writes in his essay "Targeted Killing in War and Peace: A Philosophical Analysis" that targeted killing is particularly justified against terrorists because they use tactics specifically designed to kill civilians. University of Illinois law and philosophy professor Michael Moore says in "Targeted Killings and the Morality of Hard Choices" that targeted killing can be seen as justified through both deontological and consequentialist models. University of Pennsylvania School of Law professor Leo Katz writes in "Targeted Killing and the Strategic Use of Self-Defense" that there is a danger of a state government artificially generating instances in which it asserts it must use targeted killing in self-defense. He warns against situations in which governments find it easier to kill terrorists than to put them through due process of law. Katz concludes that current regulations support targeted killing because existing law does not consider his argument and justifies the tactical elimination of terrorists. "Targeted Killings: Law and Morality in an Asymmetrical World" was reviewed in the "European Journal of International Law" by University of Potsdam international and European law professor Robin Geiß. The reviewer wrote that the book "is a thought-provoking contribution that takes a refreshingly broad and timely approach in addressing the legal, ethical, and strategic-political dimension of the contemporary debate over targeted killings". Geiß concluded, "There is some overlap between the chapters, their relationship is not always evident, and as much as the interdisciplinary approach of this volume is to be appreciated, assembling and interlinking the different legal, ethical, and political findings in an overarching, concluding chapter would have been particularly useful. Nevertheless, the book reflects the entire spectrum of diverging views on the matter, and adds an important impetus to move the current debate forward." Assistant Professor and Head of Reference at Leonard Lief Library, Lehman College, City University of New York, Madeline E. Cohen wrote in an article for the "International Journal of Legal Information", "Within the context of moral and legal principles, and military strategy, the subject of targeted killings is analyzed in great detail.