But the US and the UN warn against Iraq fragmenting and say Kurds, Sunnis, Shias and other groups should work together in a unified nation. ???Obama is selfish in this respect,??? Schwoerer told Rudaw. ???He doesn???t want to be the president under whose watch Iraq disintegrates.??? Kani Xulam, director at American Kurdish Information Network, said he saw a link to the petition being shared online