keywords: sudan kenya darfur somalia nairobi
text: U.S. Envoy: Sudan Could See Somali-Style Anarchy  NAIROBI, Kenya (Reuters) - Sudan risks falling into  Somalia-style anarchy if peace talks aimed at ending separate  crises in Darfur and the south fail and embolden more factions  to take up arms, the top U.S. envoy to Sudan said Friday.