A woman stands next to a poster during the human rights conference Revealed Memory in Rio de Janeiro, Tuesday, Aug. 18, 2009. Following publication in the U.S. of a declassified document about a 1971 meeting between President Richard Nixon and Brazilian President Emilio Medici, the daughter of overthrown Chilean President Salvador Allende is asking via Twitter that Brazil open secret archives to shed light on any role it may have played Chile’s 1973 coup. Brazil’s head of the National Secretariat of Human Rights Paulo Vannuchi said Tuesday that dictatorship-era documents related to Brazil’s possible role in the 1971 Chilean coup could already be in the public domain, still be locked up, or may have been destroyed. (AP)