There's a bigger question again about how to do prevention. It's not simply about putting out the early warning. The early warning was put out on Abyei; everybody knew that this was coming. This was intentional, and still it happened. So this idea that we fail to stop these things because there's not awareness about them, or that we need better early warning information, I'm increasingly skeptical of. I think it's about how you move that information into the policy process.

Southern Kordofan is not a disputed territory. It is, and will remain, in the north, where the Nuba Mountains are. People believe there was a genocide there in 1990s. The Nuba, who are northerners, fought with the south in the north-south war. But they have their own individual interests, and they will remain in the north after the south splits.

It's really difficult to get good information, and there's a reason for that. They're not letting journalists in. Whenever something really bad is happening, we always are dealing with uncertain information. Certainly what is happening there is qualitatively different from what happening in Abyei.

I try not to cover Sudan from afar. I feel really uncomfortable writing about Sudan when I'm not there. It always looks different. When you're outside Sudan it's easy to lose sight of how much of what happens is driven by local politics. And when you're in America in particular, there's this sense that what D.C. has to say is the only thing that counts. Unsurprisingly people in Sudan don't feel the same way.

There's a huge misconception that it's all about the oil, and the truth is there's actually not much oil left in Abyei. The misperception arose because when the peace agreement was signed in 2005, Abyei accounted for a quarter of Sudan's oil production. Since then, the Permanent Court of Arbitration in The Hague defined major oil fields to lie outside Abyei. They're in the north now, not even up for grabs, and they account for one percent of the oil in Sudan. The idea that it's "oil-rich Abyei" is out of date.

o this idea that we fail to stop these things because there's not awareness about them, or that we need better early warning information, I'm increasingly skeptical of.

No question that the spotlight on Darfur has, for all intents and purposes, disappeared. And that's deeply problematic, because it hasn't disappeared because Darfur has been solved.