Since the 1950s the importance of the language of rights in general and human rights in particular has grown at such an incredible pace that today it is perhaps the most prominent normative vocabulary in moral, political and legal discourses. Such an expansion has raised, however, many problems, driving it towards a critical situation in which there is a growing concern about the “devaluation” of “rights-talk”.
Tschorne, Samuel I, "Towards an expressive approach to rights: revisiting Hart’s theory of rights" (2013). SELA (Seminario en Latinoamérica de Teoría Constitucional y Política) Papers. 120.