  Moral responsibility is generally attributed to moral agents and, at least in Western philosophical traditions, moral agency has been a concept exclusively reserved for human beings (Johnson 2001; Doorn and van de Poel 2012). Unlike animals or natural disasters, human beings in these traditions can be the originators of morally significant actions, as they can freely choose to act in one way rather than another way and deliberate about the consequences of this choice. And, although some people are inclined to anthropomorphize computers and treat them as if they were moral agents (Reeves and Nass 1996; Nass and Moon 2000; Rosenthal-von der Pütten 2013), most philosophers agree that current computer technologies should not be called moral agents, if that would mean that they could be held morally responsible. However, the limitations of traditional ethical vocabularies in thinking about the moral dimensions of computing have led some authors to rethink the concept of moral agency.