In Plain Sight looks at the failures of US intelligence in the run-up to September 11 attacks [GALLO/GETTY]

In April 2002, Al Jazeera reporter Yosri Fouda conducted the first and only interview with the two main planners of the September 11 attacks.

Fouda was blindfolded and taken to a hideaway in Karachi, Pakistan where he met Khaled Sheikh Mohamad and Ramzi bin al-Shibh.

In the interview he obtained the first full admission by al-Qaeda that they had carried out the 9/11 attacks.

Through exclusive information from that interview, Al Jazeera was able to track the movements of the hijackers as they prepared for their mission - making apparent the extent of the US' failure to detect and prevent what al-Qaeda called its 'planes operation'.

From a high-level al-Qaeda summit held in Kuala Lumpar in 2000 to intelligence disregarded by both American and European security services proving an attack was imminent, Fouda's investigation makes clear that there was a litany of astonishing mistakes by the CIA in the run-up to the September 11 attacks.

In Plain Sight is an extraordinary account of the cover-up and complicity of US intelligence in the run-up to 9/11 - with exclusive footage of the hijackers preparing for their suicide mission.

In Plain Sight originally aired from September 19, 2007