Norman Daniels' and Daniel Callahan's recent work attempts to develop and deepen theories of justice in order to accommodate intergenerational moral issues. Elsewhere, I have argued that Callahan's arguments furnish inadequate support for the age rationing policy he accepts. This essay therefore examines Daniel's account of age rationing, together with the complex theory of age-group justice that buttresses it. Sections one and two trace the main features of Daniels' prudential lifespan approach. Section three calls into question the theory's conformity to (...) liberal tenets. The next section attempts to show that the outcome of the prudential approach fails to match our considered judgments. The brief final section offers a broader perspective on the task of articulating a liberal theory of age-group justice. Keywords: elderly, age-group justice, biomedical model of disease, rationing, liberalism, distributive justice CiteULike Connotea Del.icio.us What's this? (shrink)