Nowadays, rights are frequently ascribed to groups distinguished by their nationality, culture, religion or language. Rights are also commonly ascribed to institutionalised groups, such as states, businesses, trade unions and private associations. Yet the ascription of rights to groups remains deeply controversial. Many people reject the very idea of group rights. Amongst those who do not, there is radical disagreement about which sorts of group might possess rights and why. Some believe that group rights threaten the freedom and well-being of individuals, while others argue that the rights...