With the referendum, many South Sudanese living in Darfur are uncertain of their status. They think about returning to South Sudan. Thousands have already left, and many are awaiting the outcome of the referendum before making a decision. Being Christian in a Muslim state, they fear their right to practice their religion may be circumscribed. They also have the more essential anxiety of being seen and treated as foreigners.Photograph: UNAMID - Olivier Chassot.