Ask HN: Best book to read on the 9/11 tragedy

The Looming Tower is the modern classic[1]. It's about the people behind the attacks and some of the dysfunction that caused the Bush Administration to fail to stop them.

The aftermath of the attacks is much more complex and, in my opinion, important. I don't have a recommendation on what to read, but the US response to the attacks (including multiple major wars) is a historical failure that seemingly every generation must re-learn in painful ways.

1. https://en.wikipedia.org/wiki/The_Looming_Tower