Students lie on the ground during a protest against the government entitled "Mass suicide by education" in Valparaiso city, about 121 km (75 miles) northwest of Santiago, June 28, 2011. The protest was held to demand changes be made to the public state education system. The placard on left reads: "I die for a free education". REUTERS/Eliseo Fernandez (CHILE - Tags: EDUCATION CIVIL UNREST)