The chief of the U.N. refugee agency says violence in western Sudan is aggravating an already serious refugee crisis in neighboring Chad. The U.N. High Commissioner for Refugees, Ruud Lubbers visited the remote refugee camp at Farchana, Chad. The Farchana refugee camp lies on a hot and dusty plain about 50 kilometers from the border with Sudan. It is home to about 2,000 Sudanese refugees who have fled a bloody ethnic conflict in Sudan's western Darfur region. Chad is hosting about 110,000 Sudanese refugees and the UNHCR is scrambling to help them. There is a lot of resentment among the...