Sudan has prevented the United Nations’ top humanitarian official from visiting the troubled Darfur region. Jan Egeland told the BBC he thought the government did not want him to see the latest wave of “ethnic cleansing” against black Africans in South Darfur. He said thousands of people had fled after 60 villages were attacked by pro-government Janjaweed militias. More than two million people have sought refuge in huge camps following three years of such attacks. Full Story