For starters, I recommend two books, both written by Barbara Olsen who died on 9/11 when Flight 77 was crashed into the Pentagon:
and
The Final Days, published posthumously in Oct, 2001
R.I.P. Barbara, true patriot.
Barb Olsen was a Freeper too—”BKO”—Class of ‘99.
Tributes to her:
http://www.freerepublic.com/focus/f-news/520807/posts