Thousands of Sudanese expats in the US are spending their days and nights online these days - getting little sleep, calling home multiple times a day, checking on the safety of their family and friends - hoping for good news.
Darfur has been embroiled in conflict since 2003. One impact of the fighting is that refugees often don't have access to clean drinking water. A group of college students in Boston has been raising money to build deepwater wells to supply cleaner water.
Sudan's President Omar al-Bashir has ruled out talks with South Sudan on the simmering border conflict that has prompted fears of all-out war. Earlier, Sudanese jets bombed a border area in South Sudan.