 Sudanese political rivals traveled to Cairo, Egypt, for talks over the weekend, but the meetings ended without any hopes of an end to the bloodshed which has devastated Sudan since April of last year. The Sudanese military and paramilitary rapid support forces remain locked in a battle for territory and power, which has killed tens of thousands and displaced some 10 million people in what the U.N. says is the world's worst displacement crisis. The southeastern state of Sana'a, which many people—