The Nile River, broad and swift-moving, cuts a wide swath through South Sudan's capital city of Juba. Barges move upriver (i.e. southward) from Khartoum, bringing passengers and all manner of cargo--except oil. The northern Sudan government in Khartoum stopped the delivery of petrol to the South in June, causing the price of petrol to skyrocket. One gallon of gas now costs the equivalent of $8 US dollars, an impossibly high price for most of the population. It is but one sign of worsening relations between the two halves of old Sudan. Much more worrisome: the recent bombing and military occupation by the north of South Sudan's oil regions, displacing tens of thousands of southerners. Where will it end? Will the international community stand by and do nothing?