When the new military-backed Egyptian government lifted a nationwide state of emergency more than 10 days ago, it seemed to be proclaiming a momentary victory in the battle with its principal foe, the Muslim Brotherhood, whose regular protests had begun to wither. But the government’s problems hardly abated. In brazen and occasionally spectacular attacks, militants have stepped up a campaign of assassinations and bombings aimed at the security services. Non-Islamist critics have accused the government of incompetence or growing authoritarianism, potentially broadening the opposition beyond supporters of Mohamed Morsi, the deposed Islamist president. At the same time, unrest has begun to surface in different places, lately sweeping up Islamist students on university campuses. And notably, small cracks have begun to appear in the coalition that supported the ouster of Mr. Morsi as the government has faced anger from recent allies and rare criticism in the once-fawning local […]