Sudan's President Omar Hassan al-Bashir speaks to the crowd after a swearing-in ceremony at green square in Khartoum, earlier this month. A South African court has ordered al-Bashir, who is attending an African Union summit in Johannesburg, to be detained on an international war crimes warrant. Reuters/Landov hide caption

itoggle caption Reuters/Landov

Alex Sanchez with his wife, Blanca, and sons Duvan and Irvin. Sanchez has been eligible to live and work legally in the U.S. since 2001, when his home country, El Salvador, experienced a major earthquake. Alexandra Starr for NPR hide caption

itoggle caption Alexandra Starr for NPR

American Ryan Boyette, left, works with Yassin Hassen, right, in an interview with a rebel in Sudan's Nuba Mountains. Boyette started the Nuba Reports website in 2011 and recruited Hassen to join as a citizen journalist. Alan Boswell/MCT via Getty Images hide caption

itoggle caption Alan Boswell/MCT via Getty Images

Ger Duany, Reese Witherspoon and Arnold Oceng seen at Warner Bros. "The Good Lie" Premiere at 2014 TIFF on Sunday, Sep. 7, 2014, in Toronto. Dale Wilcox/Invision/AP hide caption

itoggle caption Dale Wilcox/Invision/AP

Troops sent to South Sudan by the U.N. watch as men walk to a camp for refugees near Juba, the nation's capital. James Akena /Reuters /Landov hide caption

itoggle caption James Akena /Reuters /Landov

Sudan's President Omar al-Bashir, who faces genocide charges, has applied for a visa to come to the U.S. for the annual United Nations General Assembly next week. The U.S. has not yet said whether he'll be allowed in the country. Mohamed Nureldin Abdallah/Reuters/Landov hide caption

itoggle caption Mohamed Nureldin Abdallah/Reuters/Landov

Tensions are rising between Sudan and its recently independent neighbor, South Sudan. Adriane Ohanesian/AFP/Getty Images hide caption

itoggle caption Adriane Ohanesian/AFP/Getty Images

The South Sudan delegation, including Vice-President Riek Machar Teny-Dhurgon (second from right), are congratulated by a delegate as they take their seats after the U.N. General Assembly voted to admit the newly formed nation. Stan Honda/AFP/Getty Images hide caption

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Sarura Ali (right) covered her eyes from wind-blown dust as she stood with her six children outside a food distribution point in the Dadaab refugee camp in northeastern Kenya on Tuesday (July 5, 2011). Sarura, her husband and their children trekked for eight days from their home in Sakow, Somalia. War and drought are forcing many Somalis to take desperate measures. Roberto Schmidt /AFP/Getty Images hide caption

itoggle caption Roberto Schmidt /AFP/Getty Images

Southern Sudanese rally on the streets of the southern capital, Juba, on Dec. 9, marking the one-month countdown until a landmark independence referendum is due. The vote could see Sudan's autonomous and mostly Christian south break away from the predominantly Arab and Muslim north. Peter Martell/Getty Images hide caption

itoggle caption Peter Martell/Getty Images

Former NBA star Manute Bol, shown speaking at a March 2006 Sudan Freedom Walk rally in Philadelphia, played 10 seasons in the NBA and later founded a humanitarian group that promotes reconciliation in Sudan. He died Saturday at a Virginia hospital at age 47. Matt Rourke/AP hide caption

itoggle caption Matt Rourke/AP