WASHINGTON, Dec. 6 - Confidential memorandums from F.B.I. officials that were disclosed Monday show the bureau repeatedly criticized "aggressive interrogation practices" that its agents observed being used by military personnel at Guantánamo Bay, Cuba.
One document, obtained by The Associated Press, described a case in which an agent observed a female interrogator squeezing a male detainee's genitals and bending back his thumbs. Other memorandums were provided by the government in response to a lawsuit filed by the American Civil Liberties Union.
The memorandums show that relations between agents of the Federal Bureau of Investigation and senior military officials at the detention facility in Cuba grew heated as agents at Guantánamo objected to the interrogation techniques, arguing that they were not effective. It is not clear whether the bureau raised ethical questions regarding the treatment of detainees.
An F.B.I. official whose name was edited from a memorandum dated May 10 wrote that a sharp exchange of views occurred at a meeting with Maj. Gen. Geoffrey D. Miller, then the commander of the detention facility at Guantánamo, and Maj. Gen. Michael B. Dunleavey, who was in charge of the intelligence operation there.
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http://www.nytimes.com/2004/12/07/national/07gitmo.html