Iraq is in crisis as Sunni militants seize more towns and now set their sights on the capital Baghdad. In the past few days, al-Qaeda-linked rebels have seized control of Mosul, Iraq’s second-largest city, as well as Tikrit and Dhuluiya. Meanwhile, Iraqi Kurds have seized control of the northern oil city of Kirkuk. The Sunni militants now control a territory that stretches from the eastern edge of Aleppo, Syria, to Fallujah in western Iraq and now the northern city of Mosul. Their advance has caused a humanitarian catastrophe, displacing some 500,000 people in Mosul alone. Mosul fell in part because U.S.-trained Iraqi forces abandoned their posts. Iraqi Prime Minister Nouri al-Maliki has reportedly urged the U.S. to carry out airstrikes in recent months, but the Obama administration has declined the request so far. We’ll have more on the crisis in Iraq after headlines.