This will go down well

Back in September, Mexican police arrested a group of 43 student teachers who had been travelling to Iguala for a protest against the local government. They handed them over to a local drug gang, who murdered them. Since the massacre, there have been protests across Mexico at the government's inaction and apparent collusion, which saw the Presidential Palace set on fire. Those protests are going to get worse. Because it turns out that the government - which has denied responsibility and pretended ineffectiveness - knew about the whole thing:

Mexican federal authorities had real-time information of an attack on a group of student teachers by corrupt local police, but did nothing to stop the disappearance and probable massacre of 43 people, according to new evidence published by the news magazine Proceso.

Based on leaked government documents, the new allegations are likely to further fuel public anger at the government of the president, Enrique Peña Nieto, which has insisted that federal authorities share no responsibility for the students’ disappearance.

[...]

According to the Proceso account, the C4 [Federal police spies - I/S] informed the head of the federal police unit stationed in Iguala when the students arrived at the city’s bus station at 9.22pm. About 20 minutes later, the C4 reported that gunfire had broken out, Proceso reported – the opening volleys of what turned into several hours of violence.

Anabel Hernández, one of the report’s authors, told MCS Noticias radio station: “When we see that the federal government and the state government were following the students since they left the college in Ayotzinapa, it becomes very difficult to think that everything else that happened was an accident.”

A government which colludes in the murder of its own citizens does not deserve to stand. Those involved need to be arrested and prosecuted for conspiracy to murder. Those who let them do it need to be forced from office. And Mexico should burn until that happens.