Southern Cone Documentation Project

Featured Posting

Operation Condor: A Network of Transnational Repression 50 Years Later

Washington, D.C., November 26, 2025 - On General Augusto Pinochet’s 60th birthday, November 25, 1975, four delegations of Southern Cone secret police chieftains gathered in…

Nov 26, 2025

Previous Postings

“Kissinger: Power by Any Means Necessary”

Oct 27, 2025

Henry Kissinger: The Declassified Obituary

Nov 29, 2023

Barack Obama throws flowers in the River Plate

‘Declassification Diplomacy’: Lessons Learned on The Argentina Declassification Project (ADP)

Sep 22, 2021

Coup leaders Admiral Massera and General Videla

Argentina’s Military Coup of 1976: What the U.S. Knew

Mar 23, 2021

Argentina’s House of Horrors

Jul 21, 2020

A Human Rights Hero: The Legacy of Franklin Allen (Tex) Harris (1938-2020)

Mar 10, 2020

The CIA's ‘Minerva’ Secret

Feb 11, 2020

Inside Argentina’s Killing Machine: U.S. Intelligence Documents Record Gruesome Human Rights Crimes of 1976-1983

May 30, 2019

Declassification Diplomacy: Trump Administration Turns Over Massive Collection of Intelligence Records on Human Rights and Argentina

Apr 12, 2019

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About this Project

Working with partners in Argentina, Uruguay, and Paraguay, the Southern Cone Documentation Project aims to support the effort for truth and justice and to address human rights violations committed by military regimes in the region in the 1970s and 1980s. Using U.S. declassified documents and records from regional secret services, project Director Carlos Osorio has introduced critical evidence in multiple judicial proceedings including trials featuring Operation Condor and Operation Mexico (both in Argentina), and against Uruguayan former President Juan Maria Bordaberry. The project has pushed successfully for the declassification of more than 8,000 US documents in the 1990s and early 2000’s in an effort to fill the historical gaps left by policy makers and to portray a more complete image of Latin American dictators and the nature of their U.S. partnerships. We are currently supporting the declassification of thousands of additional documents, announced by the Obama Administration in March 2016. With this evidence the Southern Cone Project will continue to assist victims of human rights abuses by exposing new information regarding repressive military regimes in South America and the complex role of U.S. policy.

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Project Director

Carlos Osorio, Director of the National Security Archive's Southern Cone Documentation Project, receiving a special award from the Argentine Embassy in Washington for his work in providing critical documentary evidence and testimony to numerous high-profile trials in Argentina aimed at uncovering and prosecuting human rights violations by the military junta from 1976-1983.