During a joint news conference with Ethiopian Prime Minister Hailemariam Desalegn, Obama said that a country is more successful when "all voices are being heard."
Daniel Majok Gai fled South Sudan twice because of war. He wants to return for good. But for now, he's giving back by helping youth there gain an education. His inspiration: a girl named Annah.
The government says the former vice president is mobilizing an army of youth to seize key cities in the newly independent nation. The United Nations is not sure it can protect the thousands of people staying at its compound who have been displaced by recent ethnic fighting.
In the desperately poor country, some 60,000 informal miners are working by hand to unearth an estimated $660 million worth of gold each year. The government is hoping to lure international mining companies to carry out the search on an industrial scale.