Jason Leopold reports: Rob Richer, the No. 2 ranking official in the CIA's clandestine service, paid a visit to Glenn Carle's office in December 2002 and presented the veteran CIA operative with an urgent proposal.

"I want you to go on a temporary assignment," Carle recalls Richer telling him. "It's important for the agency, it's important for the country and it's important for you. Will you do it?"

Richer, who resigned from the CIA in 2005 and went to work for the mercenary outfit Blackwater, told Carle that agency operatives had just rendered a "high-value target," an Afghan in his mid-forties named Haji Pacha Wazir, who was purported to be Osama bin Laden's personal banker as well as financier for a number of suspected terrorists. Wazir was being held at a CIA black site prison in Morocco, and the agency needed a clandestine officer who spoke French to take over the interrogation of the detainee.

Carle, formerly the deputy national intelligence officer for transnational threats, who had no prior interrogation experience, agreed, and within 72 hours, he boarded a CIA-chartered jet bound for Morocco.

Carle recounts what unfolded next in his riveting book, "The Interrogator: An Education," which stands as a damning indictment of the CIA's torture and rendition program and the Bush administration's approach to the so-called Global War on Terror.