Image: A demonstrator dressed as Santa Claus is arrested by riot policemen during clashes with student protesters in Santiago

A demonstrator dressed as Santa Claus is arrested by riot policemen during clashes with students protesting against the government to demand changes in the public state education system in Santiago, December 22, 2011. Chilean students have been protesting against what they say is the profiteering in the state education system. REUTERS/Ivan Alvarado (CHILE – Tags: POLITICS CIVIL UNREST TPX IMAGES OF THE DAY CRIME LAW)