The trial of Argentina's last military ruler opened this week at a Buenos Aires sports arena, attended by hundreds of relatives of his victims. Reynaldo Bignone is accused of involvement in the kidnapping, torture and murder of 56 people at Campo de Mayo military base. Seven other retired military and police officials, including five generals, are on trial with him.

Two weeks after Rio de Janeiro celebrated winning the 2016 Olympic Games, the Brazilian city was rocked by an intense gun battle that left 12 dead, including two police, in one of the northern favelas, and a Military Police helicopter was shot down, killing two officers. The violence began early Oct. 17, when Morro dos Macacos favela, controlled by the Amigos dos Amigos drug gang, was invaded by members of the rival Comando Vermelho. Both sides then turned against the police who were sent in to intervene. Ironically, the violence took place near a football field known as the Vila Olímpica. Fighting quickly spread to the neighboring favelas of Sampaio and Vila Isabel, where numerous buses were torched in protest of the police invasion. The conflicted favelas have since been flooded with hundreds of Military Police. (BBC News, Jornal de Brasília, Oct. 18; The Guardian; Jornal do Commercio, Recife; eBand, Brazil, Oct. 17)

Argentina's former President Carlos Menem was charged Oct. 1 with obstructing an investigation into the 1994 bombing of the Argentine Jewish Mutual Aid Association (AMIA) in Buenos Aires that killed 85 people and wounded more than 300. At the time of the bombing, Menem, now 79, was in the midst of his 12 years as president. He also faces charges in a separate case involving a scheme to smuggle weapons to Croatia and Ecuador. (NYT, Oct. 1)

Spanish police arrested former Argentine military pilot Juan Alberto Poch on Sept. 21 in Valencia on charges by Argentine courts that he flew some of the "death flights" in which as many as 1,000 opponents of Argentina's 1976-1983 military dictatorship were thrown from planes into the Atlantic while drugged. When he was arrested, Poch, a dual national of Argentina and the Netherlands, was working as a pilot for Transavia, a low-cost airline owned by KLM and Air France. He was arrested while at the controls of a plane in Manises airport, about to fly a holiday group from Valencia to Amsterdam. Spanish police said Poch is named in four separate investigations in Argentina; he will face an extradition tribunal to determine whether he will be sent to Argentina. (The Guardian, UK, Sept. 23)

An independent union of Argentine transit workers, the Union Association of Subte and Premetro Workers (AGTSyP), held job actions on Sept. 9 and 10 in the Buenos Aires transit system in a push to win official recognition. In the Sept. 9 action the workers opened the turnstiles for two hours, letting commuters ride for free. On the second day, they shut much of the system down for two hours, affecting about 160,000 riders, according to Metrovías, S.A., the company that has managed the capital's subway and commuter lines since they were privatized in 1994. A unionist jumped on the tracks at the Pueyrredón station to block the trains, while a group of workers blocked the C Line tracks at the Avenida de Mayo station.

Jaime Mendoza Collío, a 24-year-old Mapuche activist, was shot by the police while taking part in an occupation of land claimed as indigenous territory Aug. 12 at Angol in the southern Chilean region of Araucanía. His slaying marks the third indigenous activist killed since the restoration of democracy in 1990, when the Mapuche launched a strategy of land occupations aimed at recovering their ancestral territory.

A judge in Chile has charged a former soldier in the 1973 murder of internationally renowned Chilean folk singer Víctor Jara. Up to now, the only person prosecuted in the case was the commanding officer at the temporary prison camp where the songwriter was killed shortly after the Sept. 11, 1973 coup led by Gen. Augusto Pinochet.

A Lebanese man held in Brazil for three weeks for posting anti-US comments on the Internet is not a member of al-Qaeda, as one Brazilian newspaper reported, federal prosecutors said May 27. The man, identified only as "K," is a self-employed computer technician with permanent residency in Brazil, where he lives with his Brazilian wife and daughter, officials and his lawyer said. He was released on May 18 this week after being arrested three weeks ago in Sao Paulo.