EDITORIAL USE ONLY - NO COMMERCIAL OR BOOK SALES. A protester gestures in Tahrir square during an anti-government demonstration in Cairo January 30, 2011. Protesters intensified their campaign on Monday to force Egypt's President Hosni Mubarak to quit as world leaders struggled to find a solution to a crisis that has torn up the Middle East political map. Picture taken January 30, 2011. REUTERS/Yannis Behrakis (EGYPT - Tags: CIVIL UNREST POLITICS IMAGES OF THE DAY)