This memo is a response to a Bureau wide memo sent by Steve McCraw to illicit information from FBI agents who toured through Guantanamo Bay from February 10 to March 27- 2003. He does not have anything to report concerning any suspected or witnessed abuse of detainees at Guantanamo Bay. The agent states that they observed several interviews and detainees in interview rooms, but other than detainees being cuffed and shackled, this agent did not witness any abuse or mistreatment. The agent did report hearing "rumors" about a technique used by military interrogators which was not allowed to be used by Agents. The technique was to leave a detainee shackled in an interrogation room for an extended period of time, twelve hours: or more and either turn the air conditioner to its lowest possible temperature or off. Supposedly, the detainees were not removed from the rooms even to relieve themselves. This was only used for the difficult detainees who would not cooperate".