Hillary Rodham Clinton's brief visit to South Sudan provided an opportunity for the United States to show leadership in countering a vast humanitarian crisis in the border region between Sudan and South Sudan. Once again, the world is looking away.
South Sudan's charges that Khartoum is arming rebel movements to destabilize the future independent country could further strain between the historic rivals.
The death toll given Sunday by Sudan's military is more than double that of initial reports of clashes that started Thursday when former militiamen now serving in the Sudanese Armed Forces (SAF) refused to turn in their heavy weaponry.
UN Secretary General Ban Ki-moon called on the parties to the Comprehensive Peace Agreement to work through political differences so the negotiations ahead of the south Sudan referendum could begin.
The upcoming Sudan referendum will pose a challenge for Renk, a town that is technically in south Sudan but is heavily influenced by north Sudan's culture and economy.