WASHINGTON, DC - MARCH 31: U.S. Assistant Secretary of State for African Affairs Johnnie Carson (L) talks with Ambassador Princeton Lyman, who was appointed to be the new special envoy to Sudan, in ... more 
WASHINGTON, DC - MARCH 31: U.S. Assistant Secretary of State for African Affairs Johnnie Carson (L) talks with Ambassador Princeton Lyman, who was appointed to be the new special envoy to Sudan, in the Treaty Room at the Department of State March 31, 2011 in Washington, DC. Southern Sudan held a referendum on independence earlier this year and the southern Sudanese people overwhelmingly voted in favor of succession in July 2011. (Photo by Chip Somodevilla/Getty Images) less 
1 / 5
Getty Images | Photo By Chip Somodevilla / Getty Images
Thu, Mar 31, 2011 5:03 PM EDT