Unless rights are claimable, it is sometimes argued, they are no more than rhetorical gestures which mock the poor and needy. But what makes a right claimable? If rights are to avoid the charge of emptiness, I argue, they must be effectively enforceable. But what does this involve? I identify three conditions of enforceability, and four sets of broader circumstances in which these conditions can be met. I discuss the implications of this analysis of rights for multicultural societies, and conclude (...) that the conditions in which appeals to rights are useful are more limited than many contemporary theorists allow. (shrink)