Facing serious political and economic problems at home, on Jan. 6 Mexican president Enrique Peña Nieto made his first official visit to Washington, DC, since taking office in December 2012. A private meeting at the White House with US president Barack Obama lasted longer than was scheduled, and the two presidents didn't take questions when they spoke with the press afterwards. The US has been following the "tragic events" involving seven deaths and the abduction of 43 students the night of Sept. 26-27 in the southwestern Mexican state of Guerrero, Obama told reporters, and the US would continue to aid in investigations and in the fight against drug cartels. Obama also praised Mexico's efforts to keep Central American migrants from reaching the US border, especially during the child migrant "crisis" in the summer of 2014. Peña Nieto promised that Mexico would help the US and Cuba normalize relations. (La Jornada, Mexico, Jan. 7)

Reuters on Dec. 10 reported that the alleged Chicago jefe of Mexico's Guerreros Unidos narco-gang faces federal charges with seven others for a plot that involved moving heroin and cocaine to the Windy City in passenger buses. Pablo Vega Cuevas and his brother-in-law, Alexander Figueroa, both of Aurora, Ill., were arrested in Oklahoma; three suspected accomplices were busted in the Chicago area. Warrants have been issued for three others, including one believed to be in Mexico. The investigation led to the seizure of 68 kilos of heroin, nine kilos of cocaine and more than $500,000 in cash. "These arrests will have a significant impact on the supply and distribution of heroin and cocaine throughout the Midwest," Dennis Wichern, the DEA's Chicago special agent-in-charge, said in a statement.

On Dec. 12 a federal judge in Mexico City acquitted Raúl Salinas de Gortari, brother of former president Carlos Salinas de Gortari (1988-1994), of corruption charges in a case that has been argued in the courts since 1996. The Federal Attorney General's Office (PGR) charged Raúl Salinas with unlawful enrichment involving some 224 million pesos—about US$14.7 million at the time—that had gone missing from a secret presidential discretionary fund between 1990 and 1994. Salinas was cleared by a federal court on July 31, 2013, but the PGR appealed that decision. The Dec. 12 ruling, which is final, concludes that the PGR failed to prove the charges, bringing the high-profile case to a conclusion after nearly 19 years. Once he had delivered his verdict, the judge left for a vacation.

Police agents in San Fernando in the northeastern Mexican state of Tamaulipas aided Los Zetas drug gang in carrying out massacres of hundreds of Central American migrants and others in 2010 and 2011, according to a partially redacted document declassified by Mexico's Attorney General's Office (PGR). Although collusion between local Tamaulipas police and criminal gangs was already well known—US diplomatic cables released by the US government in 2013 discussed it, and locals refer to the police as "polizetas"—this is first time that the PGR has been required to release a document from an ongoing criminal investigation. Previously federal prosecutors had insisted that Mexican freedom of information laws didn't apply to open investigations. The document is now available on the website of the Washington DC-based National Security Archive, along with other relevant documents, including reports from US government agencies and US diplomatic cables released by the WikiLeaks group.

National Democratic Front of Bodoland (NDFB) militants shot dead at least 50 adivasis, or tribal people, at five different places in India's northeast state of Assam Dec. 23. Many women and children are among the dead. The attacks took place at remote rural villages, where residents were pulled out of their huts and summarily shot. The death toll is expected to rise. The coordinated attacks followed the killing of two Bodo rebels in a skirmish with Assam police troops earlier in the week. Authorities blamed the Songbijit faction of the NDFB, which is seeking statehood for the Bodoland region of Assam. (Times of India, Al Jazeera, BBC World Service, Dec. 24)

The sentencing last month in a case related to the Sinaloa Cartel's Chicago connection provided further fodder for the increasingly plausible conspiracy theory that the DEA protected Mexico's biggest criminal machine. Federal Judge Ruben Castillo sentenced Alfredo Vázquez Hernández, who had been extradited after serving a sentence in Mexico, to 22 years in prison for shipping 276 kilograms of cocaine to Chicago hidden in railway cars. Federal prosecutors said Vazquez was a top-ranking operative of the Sinaloa synidcate, who arranged airplanes, submarines, trains and trucks to move cocaine from Colombia to Chicago via Mexico. Vazquez was characterized as a lifelong friend of the cartel's now-imprisoned top kingpin "Shorty" Guzmán. Judge Castillo said this hadn't been proved, but stated: "Given the amount, it's nonsensical to think this was this defendant’s inaugural voyage into cocaine trafficking."

Colombia's army accused the FARC on Dec. 19 of killing five soldiers only hours before confirming a unilateral and indefinite rebel ceasefire to start the next day. The combat took place in Santander de Quilichao, Cauca, where a local army patrol was ambushed by members of the FARC’s 6th Front and its Teofilo Forero elite unit. One more soldier is missing in action and may have been taken prisoner by the guerrillas. The same FARC unit had earlier that day blown up the Panamerican highway at Caldono, leaving a lane-wide crater. Additionally, presumed FARC guerillas left Valle del Cauca's Pacific port city of Buenaventura without electricity after blowing up a key transmission tower on Dec. 18.

Nineteen officers of Colombia's National Police force have been arrested this week in Medellín, the latest busts in an ongoing sweep of corrupt officers. Another 27 were arrested along with the officers, accused of being their handlers for criminal bosses. The targetted officers, associated with the downtown Candelaria police station, are accused of collaborating with Los Urabeños narco-paramilitary gang. Prosecutors say the officers were paid to turn a blind eye to criminal activity in the plazas of downtown Medellín, and to provide tip-offs on planned raids. The arrests come under the National Police force's new "Transparency Plan." National Police commander Rodolfo Palomino tweeted: "They deserve to be treated like Judas, public officials of any institution that are thrown into the maw of corruption." Last month, 25 National Police agents were arrested in the crackdown nationwide. (Colombia Reports, Dec. 4; Colombia Reports, Nov. 20)