The Clarin report is not bias..

http://www.clarin.com/diario/hoy/um/m-488142.htm

Well, the report is about the mothers who who were about to initiate the "Marcha de Resistencia" (Resistance March) and are protesting against the city for having the police prevent them from their march. The police were trying to prevent the mothers from leaving from their designated protest area and causing more traffic... It's finally settled ..

There wasn't any incident. This happens every week.