Sudan has blocked peacekeeping patrols in Darfur on 42 separate occasions this year, the UN says, amid fears of a new conflict in the region. The UN says Khartoum is violating agreements by blocking the patrols. And a diplomat told the BBC that the government and rebel groups are getting ready to renew hostilities. There has been an uneasy peace in Darfur for some time. In August, the outgoing hea