The civil war in South Sudan is becoming one of the world's worst humanitarian crises. For some refugees who've fled into Uganda, ethnic rivalries stoked by the conflict persist. But other South Sudanese are rejecting those divisions and hoping for peace — together.
US officials who watch South Sudan are sounding an alarm that the young country is increasingly at war with itself. Anchor Marco Werman walks with Gayle Smith, President Obama's point person on South Sudan.