"Most think the Army of Islam is just a front for a criminal gang; that may apply to many of the bombings too. But it all adds to the sense that Gaza is beyond the PA's control. If the Palestinian unity government crumbles and Israel can hold back from a massive military operation, it could open an opportunity for Mr Dahlan, who has been quietly restoring his political influence after a period out in the cold, to make a new bid for increased power. Hamas hates Mr Dahlan; but some security-minded Israelis think he is a man they can do business with."