Among the many abuses the Senate Intelligence Committee found in its report on the CIA's torture program, perhaps one of the more embarrassing for the CIA is that the agency actually tortured its own informants at one point.
The CIA tortured its own informants by accident. pic.twitter.com/KodHWB7K7N
— max seddon (@maxseddon) December 9, 2014
In short, the CIA shackled two detainees for approximately 24 hours in a standing position to deprive them of sleep — only to find out that the detainees were former CIA contacts who tried to let the agency know of their activities so they could provide intelligence. So the CIA tortured two people who not only were not terrorists, but had been trying to help the CIA fight actual terrorists.