PT - JOURNAL ARTICLE AU - McCarthy, D TI - Persons and their copies. AID - 10.1136/jme.25.2.98 DP - 1999 Apr 01 TA - Journal of Medical Ethics PG - 98--104 VI - 25 IP - 2 4099 - http://jme.bmj.com/content/25/2/98.short 4100 - http://jme.bmj.com/content/25/2/98.full SO - J Med Ethics1999 Apr 01; 25 AB - Is cloning human beings morally wrong? The basis for the one serious objection to cloning is that, because of what a clone is, clones would have much worse lives than non-clones. I sketch a fragment of moral theory to make sense of the objection. I then outline several ways in which it might be claimed that, because of what a clone is, clones would have much worse lives than non-clones. In particular, I look at various ideas connected with autonomy. I conclude that there is no basis to the claim that, because of what a clone is, clones would have much worse lives than non-clones. I therefore reject the claim that cloning human beings is morally wrong.