Protest in Chili voor beter en betaalbaar onderwijs loopt uit op gevecht met oproerpolitie

People carry a huge Chilean flag during an anti-government rally to demand changes in the public state education system in Valparaiso city, about 121 km (75 miles) northwest of Santiago, August 9, 2011. The flag says, "Education free, dignified and gratuitous". REUTERS/Eliseo Fernandez (CHILE - Tags: POLITICS CIVIL UNREST EDUCATION SOCIETY) REUTERS