Ali Soufan, a former FBI agent who was involved in high-profile terrorism investigations, said in an interview that "not one single piece of intelligence evidence came from EITs or torture that led to Osama bin Laden."

As an Arabic-speaking FBI agent, Soufan was at the center of several Al Qaeda investigations before and after 9/11. He tells FRONTLINE that critical CIA intelligence about Al Qaeda was not communicated to the FBI before 9/11, and had that information been shared, "The world would be very different today." After 9/11, Soufan conducted interrogations of key Al Qaeda figures, including Abu Zubaydah. Soufan says he gained actionable intelligence while interrogating Zubaydah, but the information dried up after the detainee became the test case for new, harsher methods of interrogation that would come to be known as "enhanced interrogation techniques." He argues the techniques have not worked, and in one case, even resulted in faulty intelligence that helped build the case to go to war in Iraq. This is the edited transcript of an interview conducted on Aug. 30, 2011.

The title of this gut-wrenching film should mislead no one into the belief that it's a story about the search for the terrorist who was, till last year, the world's most wanted man.

Sure, the Pulitzers, the Academy Awards, the Heisman Trophy and the many business awards may seem exciting. But protecting the health, safety and economic well-being of the American people is important and serious.

What motivates someone to speak out against injustice in the government or private sector?

The Qu?bec Government Office in New York (DGQNY), in collaboration with the Canadian Consulate General in New York City and the John Jay College of Criminal Justice, organized a symposium on procedures and initiatives to combat organized crime, terrorism, money laundering, drug trafficking and other cross-border crimes.

Ali Soufan, one of the FBI officers who conducted the investigation into Fawwaz in London with Scotland Yard, said: "This is a serious guy who was with bin Laden from the beginning. The office he set up in London was more than a PR machine, everyone in the media who wanted to speak to bin Laden had to go through him and his arrest unraveled a whole network".

"The Tuareg separatists and their Islamist allies will consolidate their hold on the north, potentially serving as a magnet for extremists as well as criminal elements," said The Soufan Group, led by former FBI agent Ali Soufan, who interrogated top al-Qaida operatives and supervised cases like the 1998 bombings of the U.S. embassies in Kenya and Tanzania.

'This is the guidebook to getting false confessions, a system drawn specifically from the communist interrogation model that was used to generate propaganda rather than intelligence,' Kleinman said in an interview.

This year, Ali H. Soufan has been awarded the 2012 Ridenhour Book Prize for The Black Banners: The Inside Story of 9/11 and the War Against al-Qaeda. Soufan is one of America?s leading counterterrorism investigators; with The Black Banners, he has written the definitive history of al-Qaeda, and provides irrefutable evidence that torture is not only antithetical to American values, but produces false and dangerous information.