Governments, emerging from periods of intense political violence, wars and dictatorships, confront multiple, delicate choices. One of these concerns is the field of memory and, specifically, the question: which collective memory should the identity of the nation be built upon? The answer varies from country to country, yet one feature spans across many realities, often very different from one another: the difficulty of those in power to face the past of their nation in a non-ideological way. This paper analyzes an example of this phenomenon: the representation of the last Argentine dictatorship promulgated by the Kirchner administrations which, in the last fifteen years, has constituted the dominant version of the memory of the '70s in the country of Cono Sur, as well as on the international stage. In the article, this memory is first analyzed in its most problematic aspects, highlighting silences and inaccuracies; then linked to its social effects, above all the consolidation of a binary logic, which manifests itself in the division of the Argentine society into two antagonistic and apparently irreconcilable fields. [ABSTRACT FROM AUTHOR]