The 9/11 Commission Report : Final Report of the National Commission on Terrorist Attacks Upon the United States

Chapter 1 “WE HAVE SOME PLANES”
Tuesday, September 11, 2001, dawned temperate and nearly cloudless in
the eastern United States. Millions of men and women readied themselves for
work. ...
Available .pdf free from GPO http://www.gpo.gov/fdsys/pkg/GPO-911REPORT/pdf/GPO-911REPORT.pdf