A demonstrator throws a grille at riot policemen during a rally at Santiago downtown, July 11, 2012.  The rally was held in support of the 41th copper nationalization anniversary during the overthrown socialist Salvador Allende’s government (1970-1973).  The graffiti says “Many policemen, little fun”. [REUTERS/Ivan Alvarado]
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A demonstrator throws a grille at riot policemen during a rally at Santiago downtown, July 11, 2012. 

The rally was held in support of the 41th copper nationalization anniversary during the overthrown socialist Salvador Allende’s government (1970-1973). 

The graffiti says “Many policemen, little fun”. [REUTERS/Ivan Alvarado]

Student protesters and pedestrians run away from a jet of water released from a riot police vehicle during a demonstration against the government demanding changes in the public state education system in Santiago March 15, 2012. Chilean students have been protesting against what they say is profiteering in the state education system. [REUTERS/Ivan Alvarado]
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Student protesters and pedestrians run away from a jet of water released from a riot police vehicle during a demonstration against the government demanding changes in the public state education system in Santiago March 15, 2012.

Chilean students have been protesting against what they say is profiteering in the state education system. [REUTERS/Ivan Alvarado]

Students crouch behind a wall to hide from the water cannon truck during a demonstration against the government to demand changes in the public state education system in Santiago February 2, 2012. Chilean students have been protesting against what they say is profiteering in the state education system. [REUTERS/Victor Ruiz Caballero]
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Students crouch behind a wall to hide from the water cannon truck during a demonstration against the government to demand changes in the public state education system in Santiago February 2, 2012.

Chilean students have been protesting against what they say is profiteering in the state education system. [REUTERS/Victor Ruiz Caballero]