From Folkiedave we got the following:
Comment 1.
Complete revamp of US Intelligence Services and Security Agencies.

"Not just a little tinkering here and there then? Were they no good before?"

Frankly, no they were not. The fault for that lay with decisions taken during the Presidency of Jimmy Carter in relation to intelligence gathering, and little or no reorganization to reflect change in situation since the end of the "Cold War". The investigation into the attacks of 911 came to the same conclusion

Point 2.
"mproved lines of communication to ensure overview of intelligence data."

"Goodness knows what happened before that!!"

Well you for certain don't appear to have a clue, but as the findings of the 911 Commission stated that for all the agencies operating in the US there was no one body specifically looking at the overall picture. Due to the changes introduced by the current administration the chances of information falling through the cracks is greatly reduced.

Point 3.
Drawing the line in the sand - "You are either with us or against us" Which concentrated the minds of some waiverers and increased the amount of information and degree of co-operation with US Intelligence Services from around the world.

"And the net result of that has been.......?"

Sorry Folkiedave I thought I'd put that up earlier:

Successful attacks against the US under Clinton = 4
Retaliation against said attackers under Clinton was minimal, haphazard, ineffective and poorly directed.
Successful attacks against the US under Bush = 1
Retaliation against said attackers under Bush massive, focused and extremely effective resulting in thousands killed or captured. Al-Qaeda forced to fight in battles not of its own choosing, on ground not of its own choosing.

Point 4.
IMO ISPS Code

"MJOF (Meaningless Jargon Old Fruit)"

Well Folkiedave when you consider that there was nothing in place before it was introduced, I would hardly describe it as meaningless. You obviously do not work with anything touched by it, or have any understanding of how it does work.

Point 5.
Department of Homeland Security

"I was in the USA this time last year for Xmas. Had a great time. At Washington Dulles Airport as I left there were so many bags left unattended anyone could have blown the place up. I hope things have improved."

Surely a matter for Airport Security Staff Folkiedave

Point 6.
Intelligence gathering powers

"Whereas before this there was..............."

Nothing.

Point 6.
Taking the fight to the "enemy" whenever and wherever that enemy can be found. Al-Qaeda is having a tough enough time struggling to survive at the moment, it doesn't have time to plot or the facilities to train.

"I am not sure why enemy is inverted commas. You don't actually know what sort of time Al Queda is having because you don't actually know who it/they are, and you don't actually know where it/they are. Otherwise you would have got rid of them by now - wouldn't you?

And frankly neither does the intelligence services of the nations that are looking for them and the army that is fighting them."

Well for starters Folkiedave I know enough about them to spell their name correctly. Perhaps you can regale us of all the successes Al-Qaeda has had since they were turfed out of their cosy little enclaves in Afghanistan in 2001. Any idea how many have been killed or captured over the last six years Folkiedave? (Over 4000 in Iraq alone in 2006).

Point 7.
Forced the leadership of Al-Qaeda to very publicly declare war on their own kind (Tends not to go down well in the "muslim world" when muslim is ordered to kill muslim

"Oh! good! It'll soon all be over then!"

It is for Al-Qaeda in Afghanistan, not even their former hosts the Taleban will have much to do with them now. In Iraq their former allies have turned on them and the security situation continues to improve by the day.