Ahavuye isanamu, Getty Images Insiguro y'isanamu, Ishure kaminuza American University ryafashije abakobwa ba Chibok barokotse igitero ca Boko Haram Bwana Abubakar abona ko yagiriwe amahirwe y'ukwiga amashure kuri porogramu z'uburaya bw'uburengerazuba ariyo ikoreshwa kuri iyo kaminuza, isanzwe irwanywa bikomeye na Boko Haram.
