Sudan: Top in 'failed states index'

Sudan and the Democratic Republic of Congo are the world's most vulnerable states, according to a new study. The report - compiled by the US Foreign Policy magazine and the US-based Fund for Peace think-tank - ranked nations according to their viability. Judged according to 12 criteria, including human flight and economic decline, states range from the most failed, Sudan, to the least, Norway. Eleven of the 20 most failed states of the 146 nations examined are in Africa.