I think people felt like they did everything they had been told they should do to fix the problem, and it still wasn't fixed. Then you have these other parts of Sudan, [which] in actual fact have been left on the back burner for way too long, so there was this scramble, probably a year ago now, to focus on the fact that this peace agreement was basically falling apart.

It's best to think of these as two things - they're related, but there's different dynamics going on with each of them. A key difference is Abyei is contested territory. We still do not know whether Abyei is going to belong to the new country of South Sudan or effectively the new country of Sudan, the northern part. That was supposed to be decided by a referendum in January; that referendum never happened, so it was being dealt with through political negotiations.

I think people felt like they did everything they had been told they should do to fix the problem, and it still wasn't fixed. Then you have these other parts of Sudan, [which] in actual fact have been left on the back burner for way too long, so there was this scramble, probably a year ago now, to focus on the fact that this peace agreement was basically falling apart.

Peacekeeping there is still just totally ineffective. The UN is now saying they are sending reinforcements in the area, but I have no particular reason to believe that they will be any stronger than the force there. In Southern Kordofan, it's mostly an Egyptian battalion, and that's really problematic because the population already doesn't trust the Egyptians; they think they're on payroll of the north. So we already have a force that is seen as compromised.

Strikingly consistent across all of the battles in Sudan's history has been a fundamental conflict over what are and what are not seen as legitimate aspects of Sudanese identity.

Something I've learned over time, and trying to remind myself this week as I am back in New York and feeling pretty anxious, is that things always seem less dire when you're in the country than when you're outside. I don't exactly know why it is, except that people just have to get on with their life, so they do. And you don't have time to do anything other than keep going.

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.