In the first street demonstration that former center-left presidential candidate Cuauhtémoc Cárdenas Solórzano has led since 2000, thousands of Mexicans marched in Mexico City on Aug. 31 to show their opposition to President Enrique Peña Nieto's plan for opening up the state-owned oil and electric companies, Petróleos Mexicanos (Pemex) and the Federal Energy Commission (CFE), to greater participation by foreign and Mexican private companies. The marchers set off from the Angel of Independence, a traditional starting point for Mexico City demonstrations, but they stopped short of the usual destination, the Zócalo plaza, which dissident teachers are occupying as part of a series of protests that have tied up various parts of the capital since Aug. 21. The education workers are protesting President Peña’s plans for teacher evaluations.

In an Aug. 10 press release the Citizens Committee for the Defense of the Naturalized and of Afro-Mexicans (CCDNAM) charged that the Federal District (DF, Mexico City) had failed to carry out an adequate investigation into the beating death of US rights activist Malcolm Latif Sabazz the night of May 8-9. "It’s shameful that after three months there is no punishment of those responsible for this crime," the CCDNAM’s president, Haitian-born Mexican activist Wilner Metelus, said. "Those who assassinated our brother Malcolm Latif remain free from justice, with the complicity of the authorities."

Mexican army troops on Aug. 27 disarmed members of the "community police" force after a brief scuffle on the coastal highway in Guerrero state. Some 800 members of the self-defense patrol and their supporters were marching from the pueblo of El Paraíso, Ayutla de los Libres municipality, to  Cruz Grande, Florencio Villareal municipality, when approximately 200 troops in armored vehicles surrounded them, and demanded they surrender their rifles and machetes. In a few minutes of physical struggle, some 300 patrol members were disarmed, and 10 detained. Women, children and elders also participated in the march, which was called to demand liberty for movement leader Nestora Salgado García and 13 "community police" members from Olinalá pueblo.

Six or more people were killed in the early morning of Aug. 25 when a freight train derailed near the border between the Mexican states of Veracruz and Tabasco. The federal government reported later in the morning that four people were killed and 35 were injured, some seriously; shortly afterwards, Jazmín Cano, the mayor of Las Choapas in southern Veracruz, put the number of deaths at six and the number of injured at 22. The accident was reportedly caused by the combination of rain and excessive speed.

Some 2.3 million students in the Mexican states of Oaxaca and Michoacán missed classes on Aug. 19, the first day of the 2013-14 school year, as thousands of teachers in the two states started an open-ended strike in the latest protest against US-style changes to the education system. The job action kicked off a week of demonstrations focusing on an Aug. 21-23 extraordinary session of the Congress that was to consider legislation proposed by Mexican president Enrique Peña Nieto to make teacher evaluations mandatory. The protest movement was led by the National Education Workers Coordinating Committee (CNTE), a large dissident group in the National Education Workers Union (SNTE), with the support of several SNTE regional sections, including Oaxaca's Section 22 and Michoacán's Section 18.

Sandra Ávila Beltrán, dubbed the "Queen of the Pacific" by the Mexican media, arrived Aug. 21 at the Federal Social Readaptation Center (CEFERESO) Number 4 in Tepic, Nayarit, days after she was extradited to Mexico from the US. The transfer came after a US judge in Maimi gave her credit for time served on the basis of five years she spent behind bars in Mexico and another year awaiting sentencing in Florida. She was arrested upon her arrival back in Mexico, to face new charges of money-laundering on behalf of the Sinaloa Cartel.

On Aug. 12 Mexican president Enrique Peña Nieto formally announced his plan for transforming the country's nationalized energy sector by opening up the giant oil company Petróleos Mexicanos (Pemex) to shared risk contracts with Mexican and foreign private companies and by allowing private companies to generate electricity for the Federal Energy Commission (CFE). Mexico is currently the world's largest oil producer, with about 2.5 million barrels pumped each day, but Peña Nieto said his "energy reform" would raise oil production to 3 million barrels a day in 2018 and 3.5 million 2025 and natural gas production from 1.7 million cubic feet now to 8 million cubic feet in 2015. The reform, which would require changes to articles 27 and 28 of the Constitution, is supported by the center-right National Action Party (PAN) and Peña's centrist Institutional Revolutionary Party (PRI); the votes from the two parties should be enough to get the legislation through the Congress.

The presumed kingpin of the Gulf Cartel, Mario Armando Ramírez Treviño AKA "El Pelón" (Baldy), who also went by the code-name X-20, was arrested by Mexican army troops along with two henchmen in Río Bravo, Tamaulipas, Aug. 17. Only one shot was fired in the apprehension. Spokesmen for the administration of President Enrique Peña-Nieto in announcing the capture predicted that it would put the breaks on the nightmarish violence in Tamaulipas between the Gulf Cartel and its rivals Los Zetas, and noted that several Gulf criminal operatives have been arrested this month.