[Vídeo] México, 2 de Octubre de 1968: Noche de Tlatelolco, muerte del movimiento estudiantil
http://www.youtube.com/watch?v=du-5ts2TgG0
If you follow the menu at the end there are many other videos in Spanish covering aspects of the massacre.
40th anniversary of Tlatelolco massacre in Mexico City
This is indeed part of the student movement of protest against oppression, imperialist war and racism that rocked the world from the mid sixties and as such should be part of the collective memory of the working class. The movement had begun earlier in the USA and the National Guard responded by shooting 5 students dead at Kent State university. The movement also strongly expressed itself in Germany and later in Britain, Japan and other major countries, culminating in the solidarity between student and workers and the explosion of the biggest strike in history in May 68 in France.
Yet more excellent shit from Mexico City's anarcho-punxxxxxxxx:
Here they are trashing a 7-11 in the city centre during the commemoration demo and basically vindicating the strawman "radical" which helps justify the "mano dura" attitude DF cops have towards any sort of mobilisation (the city government's slowly criminalising demonstration within the city).
baboon, the Kent State shootings were actually in 1970, four students were killed, nine wounded. An estimated 8 million students struck across the country afterwards.. Ten days later at Jackson State in Mississippi two black students were killed by National Guard in a related uprising that did not draw near the attention at the time or in historical memory. You're right though, the student radicalization of the 1960s and early 70s was kicked off in the US. Generally the Berkeley free speech movement of 1964-65 is credited as the starting point, although many of the students involved had been active in the deep south during Student Nonviolent Coordinating Committee's Freedom Summer project, so really SNCC should get the credit.
I was a very minor participant, sneaking SDS and YIPPIE propaganda into my high school.
On 2nd October, 1968, an estimated 300 students were massacred in cold blood at a rally demanding freedom to gather, freedom of political prisoners, academic freedom in the country's universities and in support of striking students in the Plaza de Tres Culturas, Mexico City. The government had set up a special crack sniper squad which positioned itself in the flatblocks surrounding the square and on cue, opened fire on the unarmed protestors. Snipers were also positioned on the streets surrounding the square to fire on fleeing students. Immediately following the massacre - which was a largely successful attempt to crush a militant students' occupation movement inspired by Mai '68 in time for the Olympics which started in Mexico City 10 days later - the government declared that only 18 students had died and the first shots were fired by demonstrators. This is universally accepted as untrue, yet a series of subsequent state investigations have deliberately underestimated the death toll and the individuals responsible for the massacre have been defended and covered for by their successors ever since.
More info:
http://en.wikipedia.org/wiki/Tlatelolco_massacre
There's also an internationally renowned novel about the massacre by Elena Poniatowski, "The Night of Tlatelolco". I haven't read it so I can't comment on its quality though.
For the meantime, the annual Dos de octubre march took place without incident (thankfully!) in several major Mexican cities. "No se perdona, no se olvida!" ("it's not forgotten nor forgiven!").
EDIT: I won't at all be shouting that slogan at London SF social. Not even once.