No. 7: Benin
More than 76,000 people from Benin are forced to work in private homes, on cotton and cashew farms, in mining quarries, and as street vendors. UNICEF estimates most of the trafficked children in Congo originated in Benin, while the International Organization for Migration estimates that more than 40,000 children in the country are trafficked altogether.
In this photo, dozens of slave children ride in the back of a police vehicle on Sept. 26, 2003 after their apprehension at the Seme border as they were being sent to Benin.