actually it's not the rebels killing them. It's the sudanese gvmnt ALLOWING the arab descent militia's to kill them. they allow it because these same militias fight AGAINST the rebels. This is why the Sudanese gvmt will not end the genocide. The janjaweed serves a purpose for the gvmnt (squash the rebels)and the fact that they kill everyone else along the way is just an unfortunate consequence as far as they are concerned.