In the liberal democracies of North America and the European Union, terrorism is almost universally condemned. Moreover, few wish to question the“moral clarity” that denies any “moral equivalence” between terrorists and thosewho fight them (Held 2004, 59–60). However, the seeming consensus on the moral reprehensibility of terrorism is undermined by substantial disagreementabout just what terrorism is. The primary purpose of this paper is to propose an account of terrorism capable of facilitating a more productive moral debate. I conclude by opening—though (...) certainly not closing—the question of when, if ever, terrorism might be morally permissible. (shrink)