The two part PBS documentary[1] is a terrific source of information. From the events leading up to the war until the origin of ISIS skirmishes.
They explicitly cover the aluminum tube and how the government used a news paper article to justify their stance. It also covers the famous 16 words from Bush [1].
I found it fascinating to learn about all the internal politics during this period and the war state shapes the opinion of the masses. How does one go about justifying a war that has left millions dead, maimed, and traumatized for life, that has cost (and continues to) trillions of dollars, and continues to shape the world we live in today? Highly recommended.