This document contains strictly secret and confidential intelligence information about a meeting of the Workers’ Revolutionary Party–People’s Revolutionary Army (PRT-ERP) that took place in Morón, Buenos Aires Province, on 29 March 1976. It details the operation in which security forces killed four members of armed groups and made several arrests inside the property where the meeting was taking place.

[The date has been estimated by analysts at the NGO National Security Archive]

Robert W. Scherrer, Legal Attaché at the US Embassy in Argentina, writes to General Ernesto Baeza Michaelsen, Director of the Chilean Investigations Police, regarding the arrest on 17 May 1975 of Chilean MIR militant Jorge Fuentes Alarcón in Asunción, Paraguay, following his illegal entry into the country.

The US Embassy in Buenos Aires briefs the State Department on the increasing danger to political refugees in Argentina, following the disappearance of 30 Uruguayans the previous week, including the daughter of murdered Uruguayan Senator Zelmar Michelini.

In this telegram sent to the US Embassy in Montevideo, the US Embassy in Buenos Aires shares intelligence from victims' testimonies before the UNHCR indicating that Uruguayan security offices were involved in kidnappings of refugees in Buenos Aires in June 1976 in collaboration with local security forces.

This document contains a list of refugees including nationals from Bolivia, Brazil, Chile, Italy, Paraguay, Spain, Peru, and Uruguay who are detained or missing in Argentina in June 1976. The document mentions the abduction of 25 (mainly Chilean) refugees in Buenos Aires on 10 June after a list was stolen from the refugee agency in Buenos Aires.

In this document, the US Embassy in Buenos Aires briefs the State Department on the aftermath of the kidnapping and release of twenty four refugees (mainly Chileans) under UNHCR protection in Buenos Aires in June 1976.

In this telegram, the US Embassy in Buenos Aires informs the State Department about the abduction of 24 Chilean refugees and one Paraguayan in Argentina. The US Embassy calls into question the Argentine dictatorship's response which originally attributed the abductions to "irregular police or military units."

In this cable to the US State Department, the US Embassy in Buenos Aires suspects that elements of the Argentine security forces were involved in the murders of Uruguayan politicians Zelmar Michelini and Hector Gutierrez Ruiz.

In this telegram, the State Department reports on the situation of refugees in Argentina and claims that 'it is possible but not proved' that regional governments are cooperating to eliminate certain high-profile political refugees.

In this document, the US Assistant Secretary of State, Harold Saunders, writes to the Secretary of State, Henry Kissinger, about the recent assassinations of former Bolivian President Juan Jose Torres and Uruguayan legislators Zelmar Michelini and Hector Gutierrez Ruiz. These high-profile cases raise questions about the security practices of the governments of the Southern Cone.