Yesterday on Platform, my colleague Andrew Mitchell rightly highlighted the continuing violence and hunger in Darfur. And it's possible that the crisis spreads wider. I've been talking to a Sudanese minister from the SPLM, the former rebel force from southern Sudan. He warned me that the world shouldn't ignore events in the South and East of Sudan. Relations within the coalition government are uneasy. Peace in Sudan is fragile. The southerners feel that the northern majority is failing in practice to deliver on the promises made in the peace agreement. In particular, there is a row about the distribution of revenues from Sudan's oil, which is produced in the South and piped to the Red Sea for export. This morning's news is of progress over another point of contention - arrangements for a new census - but, after so many years of civil war, trust is in short supply.