FILE - In this Oct. 13, 2016 file photo released by the Nigeria State House, Nigerian government officials welcome some of the freed Chibok school girls at the state House in Abuja, Nigeria. Families and a lawyer said on Tuesday, Dec. 27, 2016, Nigerian officials prevented the freed Chibok girls from spending Christmas at home with their families. The news raises questions about Nigeria's handling of the 21 girls freed in October by negotiation with Boko Haram. (Sunday Aghaeze/Nigeria State House via AP)