Bolivian protester
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Bolivian parents clash with police over 'rotten' school dinners

12 August 2011 Last updated at 12:05 BST

Angry Bolivian parents defy tear gas and water cannons to protest against expired school lunches they say are given to their children.

They accuse the mayor of El Alto, one of Bolivia's poorests regions, of trying to kill their children with the rotten and contaminated food.