Upon a quick first glance, Plaza Primero de Mayo looks like any other small square in Buenos Aires. There are games for children, a traditional carrousel, a bocce court, a small soccer area, some chess tables, trees, bushes, and benches. If you go there on a Saturday, you may find the kiosks of a wet market selling things like fish, vegetables, and cheese. But only a careful inspection of the old fence that separates the square from some 80s residential projects on its western border and a faded memorial plaque…
