By Steven ScheerJERUSALEM (Reuters) -Israeli Prime Minister Benjamin Netanyahu on Sunday summoned his attorney-general to explain the police's handling of resurgent demonstrations against his plan to overhaul the justice system, as the reform bill edges ahead. Netanyahu - who is on trial on graft charges he denies - says the aim is to restore balance among branches of government. Compromise talks hosted by Israel's president between the government and opposition stalled last month. Protesters plan to converge on Israel's main airport as parliament debates the "reasonableness" bill. In televised remarks before the cabinet session, Netanyahu said it was "unthinkable" that his religious-nationalist coalition would abridge the right to demonstrate or support any violence against protesters.