Camp Echo (Guantanamo Bay)

Camp Echo is one of seven Guantanamo Bay detention camps associated with Camp Delta, the prisoners' camp, at the Guantanamo Bay detention camp, run by the United States military. The maximum-security facility is used to hold detainees in solitary confinement, as well as for interrogations by the military.

http://en.wikipedia.org/wiki/Camp_Echo_(Guantanamo_Bay)