Abstract

Two hard cases have generated controversy regarding the application of the principle of double effect in recent years. As regards the first, the case of the conjoined twins of Malta, there has been considerable convergence: most natural law ethicists seem to agree that separation of the twins was morally permissible. By contrast, the so-called “Phoenix case,” involving an abortion at a Catholic hospital for a woman with pulmonary arterial hypertension, has become a touchstone of disagreement between defenders of the so-called “new” natural law theory, and more “traditional” Thomists. I argue in this essay that, contrary to widespread opinion, the two cases were alike in the following respect: in neither need the principal agents have intended the death of anyone.