Exclusive-US ties Sudanese army leader's UN visa to ceasefire plan, sources say
By Daphne Psaledakis, Nafisa Eltahir, Antoni Slodkowski and Khalid Abdelaziz Sept 22 (Reuters) - The United States is withholding a visa for Sudanese army chief Abdel Fattah al-Burhan ahead of his scheduled UN appearance in a move that Sudanese and other sources say is linked





