riot police, teachers and students , march, protest , Colombia. 防暴警察， 教師和學生， 遊行， 抗議， 哥倫比亞。

Bogota, Colombia (AP Photo/William Fernando Martinez)

Education - Latest news, videos, and information- NBCNews.com http://www.msnbc.msn.com/id/34925308/?q=Education
Giovedì 6 settembre Bogotà, Colombia – Il Post http://www.ilpost.it/2012/09/06/giovedi-6-settembre/aptopix-colombia-student-protest/

in Medellin, Colombia
Colombian teachers and students march for improvements (PHOTOS) | Today Colombia http://todaycolombia.com/?p=1853

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