A Palestinian protester makes an obscene gesture to Israeli soldiers during clashes in the West Bank village of El Bireh May 14, 2001. Tension between Israelis and Palestinians is expected to rise before Tuesday's anniversary, which Palestinians mark as the Nakba or "Great Catastrophe" of their uprooting from towns and villages in the first Arab-Israeli war. REUTERS/Natalie Behring

Un manifestante palestino hace un corte de mangas a los soldados israelíes durante un choques en la aldea EL Bireh 14 de mayo, 2001.  REUTERS/Natalie Behring