By Opheera McDoom
KHARTOUM, April 1 (Reuters) - As the euphoria of looming independence for Sudan's south dies down, tribal and ethnic rivalries are resurfacing. North and south are trading aggressive rhetoric again as the two sides negotiate how to disentangle their economies and resolve outstanding disputes over the border, the Abyei region and the sharing of oil resources. The assets at stake include millions of acres of fertile land, gold, oil and the waters of the river Nile. Following are factors to watch...[continued]
