well - undoubtedly the US administration didnt plan well for this war,
however there is an international islamic terrorist network, (and has been even under the Clinton administration)

except that it isnt a top-down hierarchy, and its main target isnt even the US. It is Europe.
if one looks at the attacks in Madrid of March 11, even after
the new Spanish govt. declared it would pull its troops from Iraq
a couple of backpack bombs were found along Spanish railway lines
several days later. (what was the intent of that?)
Even in september something a number people were arrested who planned
to blow up a number of Spanish buildings, which could have killed thousands.

the network extended to Italy and Germany, England.
the evidence indicates that a lot of this was planned long before 9/11.