JOHANNESBURG, South Africa and KIGALI, Rwanda (CSM) - There's an eery familiarity to the military maneuvering in and around Congo, a giant nation in the heart of Africa. Some observers worry that the region is slipping into a second African "world war" - a repeat of the 1998-2003 conflict that involved troops from six nations and left 3 million dead. Refugees are now streaming out of eastern Congo. Congolese troops are positioning near the border with longtime rival Rwanda, which is threatening retaliation. Congo's young president, Joseph Kabila, reshuffled his cabinet after an alleged coup attempt and has apparently discussed...