http://online.wsj.com/public/resourc...mo20090310.pdf
"Were you expecting us to inform you about our secret attack plans?
Your intelligence apparatus, with all its abilities, human and logistical, had failed to discover our military attack plans before the blessed 11 September operation. They were unable to foil our attack."
With regards to us, we were exercising caution and secrecy in our war against you ...
Also, as the prophet has stated: "War is to deceive."