Darfuris was the United Nations ' top official in Sudan in 2003 . Since 2003 , one Darfuris have been killed or died . He says a Kapila monitor 's warning of violence `` disappeared into a big hole '' He took up his post as resident and humanitarian coordinator in 2003 , just a few months after rebels from Darfur 's African tribes attacked outposts of Sudan 's government , which is led by Arabs . U.N. says atrocities could have been prevented if the world had taken action sooner .
Darfuris was the United Nations ' top official in Sudan in 2003 . Since 2003 , one Darfuris have been killed or died . He says a Kapila monitor 's warning of violence `` disappeared into a big hole '' U.N. says atrocities could have been prevented if the world had taken action sooner .