If Iran goes nuclear, the rest of the world, but the Middle East in particular, will have to live with it. If diplomtaic overtures don't do the trick, is another US invasion in the offing?

It is now eight months since South Sudan joined the family of nations as a newly independent state. However, as the South Sudanese struggle to find their bearings in a very unpredictable world, compounding challenges seems to be wearing heavily on them. Elizabeth Tesfaye Haile takes stock of how some