An undercover Israeli police officer (R) scuffles with a Palestinian youth suspected of throwing stones while trying to detain him during clashes in the Shuafat refugee camp in the West Bank near Jerusalem February 9, 2010. Clashes erupted between Palestinian stone-throwers and Israeli police that entered the refugee camp, a Reuters witness said on Tuesday. REUTERS/Ammar Awad (WEST BANK - Tags: POLITICS CIVIL UNREST)