In this photo released by the Nigeria State House, Nigeria’s President, Muhammadu Buhari, centre, meets with Chibok school girls recently freed from Nigeria Extremist captivity in Abuja, Nigeria, Sunday, May. 7, 2017. Five Boko Haram commanders were released in exchange for the freedom of 82 Chibok schoolgirls kidnapped by the extremist group three years ago, a Nigerian government official said Sunday, as the girls were expected to meet with the country’s president and their families. (Bayo Omoboriowo/Nigeria State House via AP)