"On a couple of occasions, I entered interview rooms to find a detainee chained hand and foot in a fetal position to the floor, with no chair, food or water," the FBI agent wrote on Aug. 2, 2004. "Most times they had urinated or defecated on themselves, and had been left there for 18 to 24 hours or more."

while my personal opinion is that information obtained by force or fear is going to be less than reliable, you may not agree.  on the other hand, id put even less faith in obtaining even questionable information through torment (hot rooms, cold rooms, standing in the corner, writing 'i will not conduct jihad' 1000 times, etc).  neither one seems like a good choice as some other unnamed bleeding heart lunatic leftist fbi agent was reported (by the washington post) to have concluded.

In another e-mail, dated Dec. 5, 2003, an agent complained about military tactics, including the alleged use of FBI impersonators. "These tactics have produced no intelligence of a threat neutralization nature to date and . . . have destroyed any chance of prosecuting this detainee," the agent wrote. "If this detainee is ever released or his story made public in any way, DOD interrogators will be not be held accountable because these torture techniques were done [by] the 'FBI' interrogators."

you dont trust the fbi?  (i believe there were similar incidents at abu gharib for which people are now serving time, based on their own testimony).