The father of Li Yun, a 15-year-old student who died in the May 12 earthquake, flashes a photograph of her through a police car's window after he was forcibly detained and taken away from the Juyuan middle school in Juyuan, Sichuan province June 4, 2008. Parents around the earthquake area are angry that schools collapsed and are demanding justice from the government. REUTERS/Nir Elias (CHINA)