Given GWB could blame the failure on the previous administration, its a bit unhappy that he won't co-operate, but I think he's trying to break the cycle of political destruction caused by such investigations referred to in Woodward's book, Shadow. That's not to excuse it, though.

It wasn't just a lack of co-ordination between the CIA and the FBI - it was an over-reliance on technology (the Rumsfield factor, since a good parallel is Rummy's hope that a missile defence system would protect the US from attack, when he should be putting those billions of dollars in the Coast Guard to stop the bomb in the drinks machine seen in The Sum of All Fears). The satellites are useful, but at the end of the day intelligence on the ground is far more useful in pre-empting terrorism.

The benefit of hindsight, perhaps, but still, it seems like a no-brainer to me.