Season 1

The odd absolute certainty and a handful of urban legends sustained by distorted truths and bloody mindedness. What do we really know about the pilots? Who exactly were they? Whose orders were they acting under? Could they have been stopped? How did the situation escalate to the point it did?

This two-part enquiry sheds new light on the geopolitical and historical background to the attacks and attempts to provide a more precise answer to these questions.