Iraqi Sunnis say could join new gov't, fight Islamic State

By Raheem Salman and Michael Georgy BAGHDAD (Reuters) - Tribal leaders and clerics from Iraq's Sunni heartland offered their conditional backing on Friday for a new government that hopes to contain sectarian bloodshed and an offensive by Islamic State militants that threatens to tear the country apart. One of the most influential tribal leaders said he was willing to work with Shi'ite prime