In the 1960s and ’70s much of Latin America languished under military-authoritarian regimes which brutally repressed political opponents, real and imagined, often justifying these guerras sucias (‘dirty wars’) in the name of peace, order, Christianity and anti-Communism. Mexico, in contrast, remained a civilian polity, ruled by a dominant party, the PRI, which claimed the patriotic and progressive mantle of the Mexican Revolution of 1910; indeed, Mexico became a haven for Argentine and Chilean political refugees, as it had for Spanish Republicans a generation earlier. The PRI prided itself on its revolutionary legitimacy and provision of politico-economic stability; so, many wrongly concluded, repression was no more than a sporadic aberration (the 1968 Tlatelolco massacre being the biggest aberrant example). Recent research, helped by the opening of sensitive security archives after 2000, has shown that repression was more severe and systematic than had previously been thought (if more discreet than in South America: Tlatelolco, a massacre in downtown Mexico City, was, in that sense, a real exception).
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