Bahraini anti-government protesters carry a palm tree trunk to use as a roadblock in Malkiya, Bahrain, on Sunday, Oct. 28, 2012, in preparation for a march calling for freedom for political prisoners and in remembrance of those killed from Bahrain's western villages. Clashes erupted toward the end of the march between youths throwing petrol bombs and riot police firing tear gas. (AP Photo/Hasan Jamali)