CIA Used Gun, Drill in Interrogation

There were also...

...mock executions:

According to the sources, the report also says that a mock execution was staged in a room next to a detainee, during which a gunshot was fired in an effort to make the suspect believe that another prisoner had been killed. The inspector general's report alludes to more than one mock execution.

Although the report chronicling all of this was completed in May 2004, and it was sent to the Justice Department and Congressional leadership shortly thereafter, it was not shown to some members of the Intelligence committees until much later:

The inspector general's report, commissioned by then CIA-director George Tenet, was sent to the Justice Department and congressional intelligence committee leaders shortly after it was written. But it was not shown to all members of the intelligence committees until September 2006, around the time that President Bush publicly acknowledged the CIA detention and interrogation program and instructed the agency, which had been holding detainees in a network of secret overseas prisons, to transfer them to the U.S. military detention camp at Guantanamo Bay, Cuba.

CIA officials lobbied against it being released to the public, peddling the usual jive: