For all the BushII team showed us pop bottle bombs and talk of homemade saran, ricin, and crop duster spray attacks there simply wasn't any second wave of terrorists ready to attack the USofA. The anthrax scare was real but the suspects were bio-defense scientists. Been Hiding miscalculated the response time of our Military and the loyalty of the Taliban warlords.
Now when the 'near' war was hopping the terrorists coming to America were very hit and miss, the most 'effective' were set-up by the FBI. The focus on the terrorists seemed to be more isolate us from our allies, the London attacks, the Spanish train bombs and the like.
These days the wars overseas are winding down and the misguided drone attacks are creating a backlash for those thinking this is more a war on Islam than terrorists, and many in here call for just such a war, we have a few home grown terrorists, deadly but not on the scale of 9-11.
But I think many miss the focus of the Islamic terrorists, they don't want to 'destroy the great satan', they NEED a great satan. But they want the USofA to get out of the way as the terrorists work in their homelands.