The Department of State warns U.S. citizens of the risks of traveling to Sudan, urges U.S. citizens to avoid all travel to the Darfur region of Sudan, and advises them to carefully consider the risks of travel in other areas of Sudan. A referendum concerning the separation of the Southern region of Sudan is scheduled to take place on January 9, 2011. Although the situation has been relatively calm since the elections held in April 2010, the period following the referendum in January 2011 remains unpredictable. This Travel Warning updates and replaces the Travel Warning issued on October 1, 2010, …