Campesinos launched a strike across Colombia May 31, with some 100,000 blocking highways and effectively shutting down at least half of the country's 32 departments. One is reported dead from clashes at a roadblock outside the main Pacific port of Buenaventura, and four soliders were briefly detained by protesters on the Quibdó-Medellín highway. The "indefinite" strike, or National Agrarian Minga, was called to protest the economic policies of President Juan Manuel Santos, and especially to press him on promises made in 2013 to end a similar national strike that left dozens dead. "They have not complied with 30% of the accords," said Robert Daza of the Agrarian Summit. He charged Santos with drawing up a National Development Plan that corresponds to the needs of the Free Trade Agreement with Washington rather than Colombia's small producers. Daza said Santos is "putting the strategic resources of the nation up for sale [and] distributing the land in an unequal manner."

A federal judge in Mexico ruled May 9 that drug lord Joaquín "Chapo" Guzmán may be extradited to the US—where he faces numerous federal charges of drug trafficking, kidnapping, money laundering and murder in Chicago, Miami and New York. Mexico's Exterior Secretariat has 30 days to decide whethe to approve the extradition, but Guzmán's lawyers say there are multiple appeals pending against extradition, and that to extradite him before these are exhausted would be a violation of his human rights. Mexico's Third District for Penal Processes, which approved the extradition, says that all legal requirements have been met. The identity of the judge in the case remains secret under special rules in place for prosecution of cartel bosses. (Jurist, BBC News)

Mayor Rosa Pérez Pérez of Chenalhó, Chiapas, stepped down May 26—after days of violence in the indigenous Maya municipality that even turned deadly. Pérez finally resigned after two state lawmakers from her Mexican Ecologist Green Party (PVEM) were taken captive by opponents at a meeting called to negotiate an end to the dispute at the offices of the Catholic diocese of San Cristóbal de las Casas. The lawmakers were forcibly removed from the premises by masked men who invaded the meeting and drove them to Chenalhó, where they were held to demand Pérez's resignation. By then, some 250 residents of outlying hamlets had fled inter-factional violence and taken refuge in government offices in Chenalhó's municipal center. A 56-year-old man was killed in fighting at the hamlet of Puebla. Violence has continued even after the resignation, with a 14-year-old girl shot in Puebla, where several homes were put to the torch. Opponents charged Pérez with diverting funds for development projects to her personal account, and say she represents the traditional ruling families of Chenalhó, who for the past generation have terrorized opposition with paramilitary groups to maintain power. The PVEM, now the ruling party in Chiapas, is assailed by critics as a "satellite party" of Mexico's ruling machine, the Institutional Revolutionary Party (PRI).

Striking teachers on May 28 took over the installations of three radio and TV stations in Tuxtla Gutiérrez, capital of Mexico's Chiapas state, in an ongoing campaign against President Enrique Peña Nieto's proposed education reform. Days earlier, state and federal police violently evicted a protest camp ste up by the teachers in Tuxtla's central plaza. The National Coordinator of Education Workers (CNTE) is demanding that the national government cancel the new education reform. Campesinos from rural Chiapas villages have mobilized local marches in support of the teachers. The pending reform would impose strict teacher evalutions, but critics say it fails to address the critical problem of under-resourced schools in poor areas of the country. The pending reform was crafted with the participation of business-friendly groups such as Mexicanos Primero, led by figures including Televisa president Emilio Azcárraga. (Left Voice, May 29; Uno TV, May 28)

Presumed militants of the Niger Delta Avengers struck four pipelines in three days, halting production at key facilities. On May 25, militants blew up a pipeline at Chevron's Escravos facility in Delya state, shutting down all the company's onshore activities in the Niger Delta. The following day, militants hit a Nigerian National Petroleum Corporation (NNPC) pipeline at the Batan oil-field in Warri, Delta state. The day after that, pipelines operated by Shell and Agip in neighboring Bayelsa state were blown up. The NDA had days earlier warned Chevron that no repairs should be carried out on facilities previously targeted by the group, until their demands are fully met. NDA claimed on its official website May 11 that it suspected Chevron was preparing to carry out repair works at the Okan Valve platform, which was blown up by the group at the start of the month. Among its demands, NDA wants to "free the people of the Niger Delta from environmental pollution, slavery and oppression," according to a statement on the group's site. A May 31 deadline had been set for oil companies to quit the Niger Delta. (This Day, May 29; AP, Punch, Nigeria, May 28; Channels Television, Nigeria, Chemical Engineer, May 27; RigZone, May 26; Sahara Reports, May 25)

On May 25, Argentina's Revolution Day, some 20 townspeople in Jáchal, San Juan province, held a "patriotic march" to oppose the local operations of Barrick Gold—only to be surrounded and arrested by the police. Organizers said the march was peaceful, but the town's mayor, Miguel Vega, said that he was illegally detained and assaulted by protesters. The town saw a recent controversy, when the municipal council, with Vega's support, voted down a measure to hold a popular consulta or referndum on the mine's operations. (InfoBae, Diario La Provincia, May 26; Diario de Cuyo, May 19) Meanwhile, operators of Argentina's biggest open-pit mine at Bajo de la Alumbrera, Catamarca province, also the site of repeated protest campaigns, announced that the facility will be closing next year, its lode of gold and copper nearly exhasuted. (La Nación, May 26)

Peru's President Ollanta Humala declared a 60-day state of emergency in the rainforest region of Madre de Dios in response to reports of mercury poisoning by outlaw gold-mining operations. According to country's Environment Ministry, as many as 50,000 people or 41% of the population of Madre de Dios, have been exposed to mercury contamination. The government plans to send hospital ships and loads of untainted fish to the area, where mercury has contaminated local waterways. Illegal gold production has increased five-fold in Peru since 2012, and it is estimated to provide 100,000 direct jobs in the country, 40% of which are in Madre de Dios. Peru is the world's sixth largest gold producer, but an estimated 20% of its annual output is of unknown origin. (Mining.com, La República, May 24)

Lima was treated to the spectacle of topless women being tear-gassed by police at a protest outside the Congress building against a new law to toughen strictures on abortion. Riot police broke up the semi-nude sit-in organized by feminist groups to oppose the pending legislation, which would impose penalties of 50 days community service on women who seek an abortion. Many of the women wrote "KEIKO NO VA" (Stop Keiko) on their torsos—a reference to right-wing presidential candidate Keiko Fujimori, who has recently taken a hard line on abortion, now opposing it even in cases of rape. Protesters also recalled her intransigent support for her father, imprisoned ex-dictator Alberto Fujimori, who carried out a campaign of forced sterilization of peasant women during his period in power in the 1990s. (Now This, StarMedia, May 20; El Comercio, May 19; La República, May 3)