U.S. warns it may cut aid to South Sudan over obstruction of humanitarian workbr br Since South Sudan’s independence in 2011, the U.S. has provided over 9.5 billion dollars in assistance, while the government has collected roughly 25 billion dollars in oil revenue — with little improvement in public services.br br READ MORE : br Subscribe on our Dailymotion channel and receive all the latest news from the continent. br br Africanews is available in English and French. br Website : www.africanews.