(en) Media: Thousands of teachers and students blocked Mexico City's main thoroughfares

During rush hour of 2nd October - to honor victims of a 1968 massacre, while pledging to 
fight to undo an overhaul of the education system. ---- A small group of self-described 
anarchists clashed with riot police, who used tear gas after the activists threw 
firebombs, bottles and rocks. Twenty officers were injured, and 20 people were detained. 
---- Police hold up their batons and shields as they clash with protesters marking the 
anniversary of the Tlatelolco massacre in Mexico City, Wednesday, Oct. 2, 2013. Mexico 
commemorated the 45th anniversary of the massacre of students holding an anti-government 
protest, killed by men with guns and soldiers ten days before the 1968 Summer Olympics 
celebrations in Mexico City. ---- Wednesday's protests and road closures are just the 
latest acts in what has become near daily disruption by demonstrations of the capital's 
life in recent weeks.

The education reform aims to break union control of the school system by requiring teacher 
evaluations.

The anniversary of the 1968 massacre of students by soldiers is often marked by protests 
and clashes.