Anger and mistrust in Gaza as Hamas hunts for Israel 'collaborators'

Deaths of three Palestinians alleged to have provided information to Israel highlights battle against perceived internal threatAbdullah al-Nashar does not have a tombstone. His grave is a smear of concrete with his name roughly written into it marked with a breeze block. It is an ignominious memorial for a man who served as a presidential guard for both Yasser Arafat and Mahmoud Abbas.But Nashar is no longer considered a Palestinian hero. On 25 May he was one of three men publicly executed for t