Iraq considers Syria intervention as rebels advance

Iraqi Shi’ite Muslim ruling parties and armed groups are weighing the pros and cons of armed intervention in Syria, viewing as a grave threat the advance of Sunni Islamist rebels who have taken two Syrian cities and now bear down on a third.

Baghdad has a dark history with Syria-based Sunni fighters, thousands of whom crossed into Iraq after the 2003 US invasion and fuelled years of sectarian killing before