Report prepared by International Crisis Group. Overview: "Instead of healing the growing divisions between Iraq's three principal communities – Shiites, Kurds and Sunni Arabs -- a rushed constitutional process has deepened rifts and hardened feelings. Without a strong U.S.-led initiative to assuage Sunni Arab concerns, the constitution is likely to fuel rather than dampen the insurgency, encourage ethnic and sectarian violence, and hasten the country's violent break-up."