Amnesty International says conditions at Guantanamo Bay are deteriorating. The group estimates 80 percent of detainees are now being held in solitary confinement. In December, the U.S. opened a new facility at the base known as Camp 6 where detainees are held in conditions of extreme isolation and sensory deprivation. Detainees are reportedly confined for 22 hours a day in windowless cells where they are almost completely cut off from human contact. Detainees are often only offered exercise at night and may not see daylight for days at a time. Amnesty says even men who have been cleared for release are being held in isolation.