Some of this we know. There was the matter that ship with tanks for the South Sudan army that was, Oh Horror, taken by Somali pirates. Some of the major powers are trying to encourage a new war between Sudan and South Sudan in order to squeeze China out. But supplying South Sudan with the necessary supplies through Kenya will be problematical. South Sudan paying for those supplies through exporting oil through a pipe line through Kenya that might need much more than the talked about 18 months ( the terrain is very difficult ) is another question. But this is no doubt part of the background of the capture of 29 Chinese workers in North Kordofan.