(Project Syndicate) – It has been nearly a year since the Islamist extremist group Boko Haram kidnapped 276 girls from their school in the town of Chibok in northern Nigeria on April 14, 2014. This week, on the website for the Office of the United Nations Special Envoy for Global Education, I will be publishing pictures of the missing girls. I expect many will find the photographs shocking; they reveal just how young and vulnerable the kidnapped children are. At the time of their abduction, the girls were 14, 15, and 16 years old. They were seized while studying for their exams. They wanted to become nurses, doctors, and teachers. Instead, they are now about to enter their second year of imprisonment.