Among the various contributions made by Mbembe, his notion of «necropolitics» appears to emerge as one of the key concepts completing Foucault's biopolitical studies. While the French philosopher identified the distinctive feature of modern biopolitics as the power to administer, manage, and control the impersonal life of populations to make them more efficient and productive, «necropolitics», by contrast, addresses the way in which the power of administration and management strategically expands the domain of death, in order to radically enforce the exclusion and subsequent elimination of surplus segments of the population-subject. This paper aims to show that Foucault’s notion of «racism» largely anticipates the scope of Mbembe’s concept of «necropolitics», even if it does not consider the particular cases developed by the Cameroonian thinker. Finally, the concepts discussed are used to develop a diagnostic approach to the Argentine case.