And if you're up for some longform read this by Gore Vidal, The Meaning of Timothy McVeigh. Written as a polemic (of course), parts of it can and should be taken with the normal Vidal pinch of salt but there's plenty to consider in retrospect, too. Not least because it was written around the time of McVeigh's execution in early 2001 and was the front page story of the September 2001 edition of Vanity Fair. And then everything changed.
Nothing like a common enemy to gird a country and prevent internal wars from breaking out, is there?