The Secret War on Terror reveals the astonishing inside story of the intelligence war which has been fought against Al Qaeda over the last decade since 9/11.

With unparalleled access to Western intelligence and law enforcement agencies, and with a host of exclusive interviews with those who have been at the sharp end of fighting the terrorists - from the CIA and the FBI to MI5 - Peter Taylor asks whether there is any end in sight and whether we are any safer from attack. The series includes the first ever television interview with the former director-general of MI5, Baroness Manningham-Buller, and an extensive interview with the recent director of the CIA, General Michael Hayden.

This second episode looks at how, with harsh interrogation techniques increasingly off-limits, spy agencies have developed a controversial high-tech method of targeting and killing suspected terrorists with pilotless drone aircraft. And Peter Taylor reports from Guantanamo Bay on how governments have been forced to face up to the end game - what to do with the hard core Al Qaeda suspects and whether it is necessary to talk to Al Qaeda. Show less