 This metaphor of trumps leads naturally to the question of whether there is any right that has priority to absolutely all other normative considerations: whether there is an “ace of rights.” Gewirth (1981) asserts that there is at least one such absolute right: the right of all persons not to be made the victim of a homicidal project. For such a right to be absolute, it would have to trump every other consideration whatsoever: other rights, economic efficiency, saving lives, everything. Not all would agree with Gewirth that even this very powerful right overrides every conceivable normative concern. Some would think it might be justifiable to infringe even this right were this somehow necessary, for example, to prevent the deaths of a great many people. If it is permissible to kill one in order to save a billion, then not even Gewirth’s right is absolute.