The Obama administration is running out of time and options to close the Guantanamo Bay detention center in Cuba, so officials are scrambling to release as many prisoners as possible and considering novel legal strategies that include allowing some men to strike plea deals by video-teleconference.

Another option would be to send others to foreign countries to be prosecuted. But it still looks to be too late to close the prison before President Barack Obama leaves office in January, denying him the chance to fulfill a campaign pledge.