Should we be worried about the threat from organised terrorism or is it simply a phantom menace being used to stop society from falling apart?
In the past our politicians offered us dreams of a better world. Now they promise to protect us from nightmares.
The most frightening of these is the threat of an international terror network. But just as the dreams were not true, neither are these nightmares.
In a new series, the Power of Nightmares explores how the idea that we are threatened by a hidden and organised terrorist network is an illusion.
It is a myth that has spread unquestioned through politics, the security services and the international media.
This came to my attention from my friend Swim, at Deep Confusion. I can't improve on her thoughts, so go read them, and follow the link to the BBC documentary there. Baby It's Cold Outside is Part 1.