On Argentina's Revolution Day, townspeople in Jáchal held a "patriotic march" to oppose the local operations of Barrick Gold—only to be surrounded and arrested by the police.
A wave of student protests demanding education reform in Chile has been met with harsh repression, leading to charges of "torture" recalling the era of military rule.
The UN Commission on the Limits of the Continental Shelf ruled Argentina's maritime territory includes the area around the Falklands—a blow to British offshore oil interests.
Obama's visit to Argentina on the 40th anniversary of the coup that opened the "Dirty War" met protests—but he pledged to release files on US complicity in the atrocities.
Brazil has seen its biggest protests since the end of the dictatorship as ex-president "Lula" da Silva is appointed to a cabinet post that gives him immunity in a corruption scandal.
A court in Buenos Aires found that Argentine prosecutor Alberto Nisman was the victim of murder, allowing a long-stalled investigation of his death to go forward.
Riot police fired rubber bullets and tear-gas at protesting public-sector workers laid off by budget cuts mandated under new President Mauricio Macri in Argentina's La Plata.
Brazil's Environment Minster announced plans to sue BHP Billiton Ltd and partners for $5.24 billion in damages caused by a dam collapse at an iron ore site that wiped out a village.
Brazilian mining company Samarco agreed to pay $260 million after waste dams were breached at its facility, flooding nearby villages with toxic mud.
Residents in the Argentine town of Famatina celebrated a major victory as La Rioja provincial authorities announced cancellation of a gold mine project following local protests.
Police troops broke up a roadblock at San Juan Jáchal, Argentina, where residents are mobilizing in the wake of last month's cyanide spill at Barrick Gold's Veladero mine.
Thousands of protesters marched on government offices in Argentina's Chaco province after housing advocate Angel Verón died from wounds sustained in a beating by police.
