This paper explores some of the challenges raised by human genetic interventions for debates about distributive justice, focusing on the challenges that face prioritarian theories of justice and their relation to the argument advanced by Ronald Lindsay elsewhere in this issue of the Kennedy Institute of Ethics Journal. Also examined are the implications of germ-line genetic enhancements for intergenerational justice, and an argument is given against Fritz Allhoff's conclusion, found in this issue as well, that such enhancements are morally permissible if and only if they augment primary goods.