Activists wearing plastic bags over their heads hold signs that read in Portuguese from left; "Stand up against torture," and "Without truth, there is no liberty," outside a military club in downtown ... more 
Activists wearing plastic bags over their heads hold signs that read in Portuguese from left; "Stand up against torture," and "Without truth, there is no liberty," outside a military club in downtown Rio de Janeiro, Brazil, Thursday March 29, 2012. A club of retired military officers held its annual celebration of Brazil's 1964 military coup as usual, but faced protestors as members arrived for the event. Unlike its Latin American neighbors, Brazil never had a formal investigation into its 20-year dictatorship. (AP Photo/Victor R. Caivano) less 
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Associated Press | Photo By Victor R. Caivano
Thu, Mar 29, 2012 6:52 PM EDT