Something has detonated in Baghdad. Not a missile. A quieter blast, felt in bank vaults and cabinet rooms. Its radius may prove wider than any single strike this region has absorbed in twenty years. At the center sits one date: 30th September. By then, every militia must disband and surrender its weapons to the state. By then, too, American combat troops are due to leave — everywhere except Erbil, the one piece of ground Washington will not give up. Iraq’s oil, its banks, its courts, and its sectarian compact are all being rewritten at once, under a man most Iraqis had never heard of eighteen months ago. The envoy who outranks the prime minister Ali al-Zaidi is the prime minister. […]