AP EXPLAINS: How South Sudan rebel's flight adds to turmoil

KAMPALA, Uganda (AP) — South Sudan, the world's newest country, is in political limbo after rebel leader and former vice president Riek Machar fled earlier this week. His whereabouts remained unclear Saturday after a spokesman for Machar and the United Nations both said he was in neighboring Congo but Congo's government said it had no knowledge of him being there. His departure puts South Sudan's peace deal, reached a year ago under international pressure, into disarray while the country's