Dozens demonstrate against Israel&#039;s attack in Gaza Strip, at the Plaza de Bolivar, Caracas, Venezuela, 21 November 2012.  A ceasefire has gone into effect in the Gaza Strip, after Israel and Hamas agreed to cease hostilities. US Secretary of State Hillary Clinton and the Egyptian Foreign Minister Mohamed Kamel Amr announced the a ceasefire agreement in Cairo some time before it took hold at 8pm CET.  EPA/DAVID FERNANDEZ