(CNN) -- "I'm angry at having presided over the first genocide of the 21st century," said Mukesh Kapila, a British doctor and former U.N. official. Mukesh Kapila said atrocities in Darfur could have been prevented if the world had taken action sooner. He was referring to what he considers the world's ineffective response to mass atrocities in Darfur, Sudan's western region. "What happened in Darfur would be classified as obscene," he told CNN's Christiane Amanpour. "It's a combination of a horror movie and a snuff movie." Kapila was the United Nations' top official in Sudan. 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.
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Mukesh Kapila was the United Nations' top official in Sudan in 2003
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Since that year, an estimated 300,000 Darfuris have been killed or died
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He says a U.N. monitor's warning of violence "disappeared into a big hole"
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Kapila says atrocities could have been prevented if the world had taken action sooner
He kept getting reports of more @placeholder killed or driven from their land and Arabs talking about making Darfur "zurka-free" -- "zurka" being a derogatory term for blacks.