This rather odd article in the Latin American Herald Tribune reports violence in Chile on the 36th anniversary of the coup by which General Augusto Pinochet overthrew President Salvador Allende. It reports there is usually violence on this anniversary but doesn't indicate by whom, in favor of whom and against whom. I presume we are supposed to know these answers.
To read the article you'd never know that the overthrow of Allende was relatively popular among many Chileans. Perhaps the violence is enacted by Chileans embarrassed that they (or more likely their parents) didn't resist the coup when it occurred.