Today sees a night of 9/11 doucmentaries on the National Geographic channel.
7pm - Inside 9/11. An analysis of the plane hijackings.
8pm - Inside 9/11. The attack on the Pentagon.
9pm - Bin Laden's Spy In America. A two hour feature on the work of ex-Egyptian special forces operative Ali Mohamed.
National Geographic is Channel 526 on Sky and 230 on Virgin.