A Darfur rebel group said on Thursday it refused to return to African Union-sponsored peace talks and rejected the pan-African body as lead mediator to end the 22-month-old conflict. The leader of the Justice and Equality Movement (JEM), Khalil Ibrahim, told Reuters it would only accept the United Nations (news – web sites) as principal mediator in any peace talks and wanted U.N. troops stationed in Darfur. The other main rebel group, the Sudan Liberation Army (SLA), said it was also very unhappy with the African Union (AU) but had not yet decided whether to attend a new round of talks in the Nigerian capital Abuja. Full Story