Middle school students clash with members of the national police during a protest in the National Institute, in Panama city, Panama, on Sept. 23, 2013. Students from the National Institute participated in a protest demanding the resignation of the Education Minister Lucy Molinar for the destitution of two students detained in previous protests, according to the local press. (Xinhua/Mauricio Valenzuela)

A middle school student clashes with members of the national police during a protest in the National Institute, in Panama city, Panama, on Sept. 23, 2013. Students from the National Institute participated in a protest demanding the resignation of the Education Minister Lucy Molinar for the destitution of two students detained in previous protests, according to the local press. (Xinhua/Mauricio Valenzuela)

Elements of the national police clash with middle school students during a protest in the National Institute, in Panama city, Panama, on Sept. 23, 2013. Students from the National Institute participated in a protest demanding the resignation of the Education Minister Lucy Molinar for the destitution of two students detained in previous protests, according to the local press. (Xinhua/Mauricio Valenzuela)