Masked Bahraini anti-government protesters carrying petrol bombs stand along the sides of a passing march in Malkiya, Bahrain, on Sunday, Oct. 28, 2012, where marchers were calling for freedom for political prisoners and honoring those killed in the uprising from Bahrain's western villages. Youths with petrol bombs also walked ahead and behind the marchers as lookouts for any riot police who might approach to disperse the gathering. Clashes between protesters and police erupted as the march was ending. (AP Photo/Hasan Jamali)