A student throws fire from his mouth during a protest against an education reform bill in Cali, department of Valle del Cauca, Colombia, Nov. 3, 2011 (Luis Robayo/AFP/Getty Images)

Iranian women hold pictures of Supreme Leader Ayatollah Khamenei outside the former US embassy in Tehran, Nov. 4, 2011, during a rally to mark the storming of the American embassy by Iranian students 32 years ago. (Atta Kenare/AFP/Getty Images)

A Palestinian stone thrower faces off with an Israeli soldier wearing a gas mask during clashes following a weekly demonstration against Israeli settlement expansion, in the West Bank village of Nabi Saleh, Nov. 4, 2011 the Israeli occupied Palestinian West Bank. (Abbas Momani/AFP/Getty Images)

An Afghan youth walks in a street holding his balloons hoping to sell them, in Kabul, Afghanistan, Nov. 4, 2011. (Muhammed Muheisen/AP Photo)

In this, Nov. 3, 2011 photo, Dan LaMoore of Electric Time Company moves a clock face at their plant in Medfield, Mass., between a large tower clock, left, bound for King of Prussia, Pa., and a post clock headed to South Jordan, Utah, right. Daylight Savings Time ends on at 2 a.m. Sunday, when clocks will be set back one hour. (Elise Amendola/AP Photo)

Former Ukrainian Prime Minister Yulia Tymoshenko waves to supporters from a prison window in Kiev, Ukraine, Nov. 4, 2011. Efforts to free jailed Ukrainian Prime Minister Yulia Tymoshenko suffered another setback after lawmakers delayed voting on a legal reform that could allow her release. (Ukrafoto/AP Photo)

Pedestrians chat on a street in the Monastiraki district of Athens, Nov. 4, 2011. Greek lawmakers prepared for a crucial confidence vote for the country’s embattled Socialist government, following an international financial crisis sparked by a Greek government plan to hold a referendum on Europe’s new major debt deal. (Petros Giannakouris/AP Photo)

A student shouts slogans during a protest against an education reform bill, in Bogota, Colombia, Nov. 3, 2011. Thousands of students in costume and carrying torches took to the streets to protest against the bill to reform higher education put forward by the government of President Juan Manuel Santos. (Guillermo Legaria /AFP/Getty Images)