Police chase anti-government protesters during clashes in Jidhafs, a suburb of Manama February 4, 2012. Bahraini anti-government protesters vowed on Saturday to return to the roundabout in the capital Manama that formed the centre point of a democracy uprising last year that the Gulf Arab state crushed by force. REUTERS/Caren Firouz (BAHRAIN - Tags: POLITICS CIVIL UNREST)