Theory of the two demons
The theory of the two demons (Spanish: Teoría de los dos demonios) is a rhetorical device used in Argentine political discourse to disqualify arguments that appear to morally equate violent political subversion with illegal repressive activities carried out by the state. Since the end of the Argentine military dictatorship (euphemistically called "National Reorganization Process") and the Dirty War, when guerrilla groups (mainly left-wing Peronist Montoneros and the Marxist-Leninist Ejército Revolucionario del Pueblo or ERP) were persecuted by the armed forces (together with law enforcement agencies and paramilitary groups), this term has been in wide use by people mainly in human rights movements, the political left, and former guerrilla members and supporters.