US envoy to Sudan steps down
Sources suggest Andrew Natsios quit over bureaucratic infighting on Darfur policy.
Last Modified: 22 Dec 2007 02:19 GMT
Some sources said Natsisos, right, quit due to turf battles within the Bush administration [EPA]

The US's special envoy to Sudan has resigned, amid speculation he quit because of bureaucratic infighting over policy on Darfur within the administration.
Andrew Natsios, who held the position for one year, is to be replaced by Richard Williamson, a lawyer and former US diplomat, the White House said on Friday.
Citing unnamed officials, some reports suggested Natsios was fed up with turf battles within the Bush administration and was frustrated at the slow pace of getting in a 26,000-strong African Union-UN peacekeeping force into Darfur.
Others noted he had accepted the job as a one-year tour.
Natsios had overseen a push to end violence, which the US calls genocide, in the western Darfur region.
He also worked to maintain a 2005 peace agreement that ended decades of civil war between north and south Sudan.
After news of the resignation became public, Darfur advocates called for the White House to appoint a full-time envoy to deal with the crisis which has killed more than 200,000 people and displaced more than 2.5 million since 2003.
"The president should appoint a full-time envoy answering directly to him, and end the crippling turf battles once and for all," said John Prendergast, co-chair of the ENOUGH project and a board member of the Save Darfur Coalition.
Prendergast said Williamson, Natsios's replacement, is a "hard-nosed negotiator" who cares deeply about the plight of the Sudanese people and might be more able than Natsios to break through the bureaucracy to make a mark on Sudan policy.
Williamson is a senior Republican party official who has in the past worked closely with John Negroponte, now Deputy Secretary of State.
Natsios plans to return to a full time teaching position at Georgetown University.
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