Originally conceived by Aristotle and Thomas Hobbes, comparative constitutional engineering in its modern form is a relatively new field of political science. It is based on the premise that political behavior and policy outcomes can be affected and shaped by institutional design such as, above all, electoral systems. The article provides an overview of the empirical literature underlying this branch of institutional counterterrorism. The article presents the logic of constitutional engineering from its classical origins and especially through the work of Arend Lijphart. It is suggested that Lijphart provides a new paradigm in the sense employed by Thomas Kuhn. The article provides original research in support of this showing that the presence of consensus institutions has better explanatory value than most social factors.