An Israeli riot police officer detains a protester during clashes in Umm el-Fahm Oct. 27, 2010. Israeli police on Wednesday fired tear gas and stun grenades to disperse Arabs who were protesting against a rally by ultranationalist Jews in the Israeli-Arab town. Riot police charged about 200 Arabs who threw stones at them before retreating, police spokesman Micky Rosenfeld said. [Xinhua]