Just wanted to bump this because the Right is pushing the reset button and trying it all over again.
Domestic terrorists are real. Islamic ones, not so much.
There is ample evidence that Al Qaeda is a creation of the US intelligence apparatus and that the terror network is supported by the Bush Administration.
It's a good documentary. Unfortunately it was censored in the US (by the "Freespeech conservatives") until 2009 but it originally came out on BBC in 2004.
The Power of Nightmares: Baby It's Cold Outside
You can watch this documentary here. https://watchdocumentaries.com/the-power-of-nightmares/