Today it's 53 years since the 1968 #Tlatelolco student massacre.

With the excuse of preventing a communist insurrection, secretary of state Luis Echeverria sent the army to corner and attack more than 10 thousand people, students in their majority, who protested against a military invasion of the Universidad Nacional Autónoma de México, a legally declared Autonomous Zone.

Official media reported no more than 20 deaths, but unofficial accounts report hundreds of people killed.

Documents later released confirm that snipers were employed by the government.

https://en.wikipedia.org/wiki/Tlatelolco_massacre

To this day, "2 de Octubre no se olvida" (October 2 won't be forgotten) is a common chant in anniversary marches.

As a personal commentary: This is yet another mass casualty of the red scare. If someone ever tells you that capitalism hurts no one, remind them of 2 de Octubre.