Foto: Reuters / Carlos García Rawlins

A demonstrator throws a tear gas grenade back at riot police during a protest in Caracas January 28, 2010. Venezuelan police used tear gas to disperse students protesting chronic electricity shortages as leftist President Hugo Chavez faced growing complaints over deteriorating public services. REUTERS/Carlos Garcia Rawlins (VENEZUELA – Tags: POLITICS CIVIL UNREST IMAGES OF THE DAY)