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At the United Nations annual summit this week the issue of Darfur was high on the agenda as African Union peacekeepers expanded their mandate in the war-ravaged region and President Bush named a special envoy to Sudan. But Mark Hanis, the 24-year-old head of Genocide Intervention Network, which seeks to help victims in Darfur -- where over 200,000 people have died and two million have been displaced in three years -- said heads of state are failing Darfur with empty rhetoric. "This has been going on for three years and it seems to be the same old story. They talk the talk but they don't walk the walk."