Burden or business opportunity? A new U.N.-backed study of refugees from the World Bank's International Financial Corporation argues for the latter. The IFC researchers examined one of Africa's oldest and largest refugee camps, Kakuma in northwest Kenya. What they found is a growing consumer base they say is ripe for more private investment in sectors like mobile banking and energy. The IFC took VOA's Daniel Schearf on a tour of the camp. He has this report.