West Bank Palestinians urge Abbas to ease sanctions on Gaza StripBy Ali Sawafta and Nidal al-Mughrabi RAMALLAH/GAZA (Reuters) - Palestinian security forces on Wednesday used tear gas and batons against protesters calling on President Mahmoud Abbas to end financial sanctions on their fellow Palestinians in Gaza. Hundreds of protesters in the West Bank city of Ramallah faced down forces loyal to Abbas, who had banned such rallies earlier in the day. Abbas's Western-backed Palestinian Authority (PA) has sought to use financial measures to isolate its chief rival Hamas, the Islamist movement which controls Gaza.