Troops have closed most of  the roads in southern Darfur, and apparently are trying to force more refugees to return home. Another UN investigation team has arrived, and has twelve days determine if genocide took place. The government apparently plans to stonewall this group, then depend on its allies on the UN Security Council to halt any move to condemn the Sudanese government for mass murder. While about 70,000 people have died in Darfur so far, the death toll will climb much higher if food aid is continually slowed down, or halted for tribes forced back to their burned out villages.