Famine threatens the lives of up to 5.5 million people in South Sudan, where droughts and flooding have destroyed crops and livestock, compounding quot;intense political instabilityquot;, the UN said on Thursday. The UN's World Food Programme said it needed $270 million (Dh991.7m) urgently to feed hungry South Sudanese in the first half of 2020 and avert mass starvation in the world's youngest country. quot;Every factor is in place for...