Palestinian tensions rise after alleged collaborator's killing.

The killing of a suspected Israeli intelligence collaborator in the West Bank has exposed the weakness of the Palestinian Authority and the strains that a recent surge in violence with Israel is beginning to exert within Palestinian communities. The case has laid bare the plight of collaborators, preyed on by both sides in the Israeli-Palestinian conflict. The killing has also highlighted the mistrust and paranoia that has grown in the Old City of Nablus, where the Lion’s Den, an independent armed group, has brought together militants from the secular nationalist Fatah party and the Palestinian Islamic Jihad group.