Iraq’s most senior Shi’ite Muslim cleric urged followers to take up arms against a full-blown Sunni militant insurgency to topple Shi’ite Prime Minister Nuri al-Maliki, escalating a conflict that threatens civil war and a possible break-up of the country. In Washington, U.S. President Barack Obama said he was reviewing military options, short of sending combat troops, to help Iraq fight the insurgency but warned any U.S. action must be accompanied by an Iraqi effort to bridge political divisions. He said it would several days to decide on the U.S. response. In a rare intervention at Friday prayers in the holy city of Kerbala, a message from Grand Ayatollah Ali al-Sistani, who is the highest religious authority for Shi’ites in Iraq, said people should unite to fight back against a lightning advance by militants from the radical Islamic State of Iraq and the Levant. Fighters under […]