https://www.aljazeera.com/news/2004/11/1/full-transcript-of-bin-ladins-speech
All that we have mentioned has made it easy for us to provoke and bait this administration. All that we have to do is to send two mujahidin to the furthest point east to raise a piece of cloth on which is written al-Qaida, in order to make the generals race there to cause America to suffer human, economic, and political losses without their achieving for it anything of note other than some benefits for their private companies.
... al-Qaida spent $500,000 on the event, while America, in the incident and its aftermath, lost – according to the lowest estimate – more than $500 billion.
Meaning that every dollar of al-Qaida defeated a million dollars by the permission of Allah, besides the loss of a huge number of jobs.
As for the size of the economic deficit, it has reached record astronomical numbers estimated to total more than a trillion dollars.
He goaded us into defeating ourselves, and it worked.