As of Feb. 2 rescue workers had found the bodies of 34 people killed in an explosion the afternoon of Jan. 31 at the Mexico City headquarters of Petróleos Mexicanos (Pemex), the giant state-owned oil monopoly, according to government officials. At least 101 other people were injured in the massive blast, which damaged part of the B2 administrative building, next to the company's main building, a 52-story tower that dominates the city's skyline. Mexican president Enrique Peña Nieto declared three days of national mourning, which coincided with a long holiday weekend; the Constitution Day holiday falls on the first Monday of February.

Thousands of laid-off Mexico City electrical workers suffered a major setback on Jan. 30 when a panel of the Supreme Court of Justice of the Nation (SCJN) overturned a lower court decision supporting the workers' claim to jobs at the Federal Electricity Commission (CFE). Lawyers for the workers' union, the Mexican Electrical Workers Union (SME), had argued that the workers were entitled to replacement jobs at the CFE because the decision by former president Felipe Calderón Hinojosa (2006-2012) in October 2009 to close down their employer--the Central Light and Power Company (LFC), which serviced the Mexico City metropolitan area—was unjustified. The federal government owned LFC before its closing, and the government continues to own and operate the CFE.

The government of the western Argentine province of San Juan released a report the week of Jan. 28 finding that two controversial mines owned by the Toronto-based Barrick Gold Corporation have no "potential or actual environmental impact on glaciers or peri-glaciers in the areas" surrounding them. The Argentine branch of the environmental group Greenpeace had charged in July 2011 that Barrick's Pascua Lama and Veladero mines were damaging three small glaciers, in violation of a 2010 federal law meant to protect Andean glaciers. Barrick challenged the law, but the Argentine Supreme Court of Justice made a July 2012 ruling that left the law in effect for the time being.

The first opinion poll relating to this year's Nov. 10 general elections in Honduras, released on Jan. 29, showed Xiomara Castro, the presidential candidate of the newly formed center-left Freedom and Refoundation Party (LIBRE), slightly ahead with 25% of voter preferences. She was followed by National Congress president Juan Orlando Hernández, the candidate of the rightwing governing National Party (PN), with 23% and Mauricio Villeda of the center-right Liberal Party (PL) with 16%. The sampling, carried out by Cid Gallup firm Jan. 14-18 with responses from 1,256 likely voters, was published by the San Pedro Sula daily La Prensa.

Guatemalan civil organizations held a protest in Guatemala City on Jan. 29 as the opening of an international campaign to demand that the government of President Otto Pérez Molina provide land for 769 indigenous campesino families that were expelled from their fields in the Polochic Valley in the northeastern Guatemalan department of Alta Verapaz in March 2011. The campaign—led by Intermón Oxfam, a Spanish group affiliated with the relief organization Oxfam International—is being carried out in Brazil, Colombia, El Salvador, Guatemala, Mexico, Nicaragua, Peru and Spain.

Francisco Sántiz López, a civilian supporter of Mexico's rebel Zapatista National Liberation Army (EZLN), was released from prison in San Cristóbal de las Casas, in the highlands of the southeastern state of Chiapas, on Jan. 25, more than 13 months after his arrest. Over the past year a movement has formed in some 30 countries to demand the release of Sántiz López and another prisoner, the schoolteacher Alberto Patishtán Gómez, a supporter of the ELZN-initiated Other Campaign.

On Jan. 27 a group of academics, musicians and human rights activists said they were planning an emergency visit the next day to two indigenous Chilean prisoners to try to find a political solution that could end a hunger strike the prisoners started on Nov. 14. The prisoners--Héctor Llaitul Carillanca, the leader of the militant Mapuche organization Arauco Malleco Coordinating Committee (CAM), and CAM activist Ramón Llanquileo Pilquimán--were convicted in 2011 of arson and of attacking a prosecutor; this is their third hunger strike to demand a reduction of their sentences. They are now being held in a prison in Concepción, in the central Biobío region.

On Jan. 12, the third anniversary of a massive earthquake that devastated much of southern Haiti, municipal and national authorities forcibly removed hundreds of people left homeless by the quake from their encampment in Place Sainte Anne, a park a few blocks from the National Palace in downtown Port-au-Prince. "Several injuries have been recorded in this unexpected eviction," Carnise Delbrun, a representative of the New Place Sainte Anne Management Commission (NCGPS), told reporters. The operation was carried out by officials from the mayor's office and from the national Civil Protection Office, the country's civil defense agency, according to the displaced camp residents.