Having lurked for a few weeks this thread has made me join in.
Although I've never been one for conspiracy theories, Gore Vidal published an essay in The Observer (UK Sunday paper) on events following the attacks on the WTC & Pentagon that is rather persuasive. There are highlights here
http://www.observer.co.uk/international/story/0,6903,819931,00.html
(Hope nobody's offended by Mr Vidal, but thought that you Americans would be as easily persuaded by him as you are of JFK and moon landing conspiracies!)
The posts of Perry, Farkel and gsx all have interesting bits of fact and lots of invective but one point raised by you all are the links between Saddam Hussein and Al Qaeda. I'm with gsx and Bush, Blair et al seem very reticent with evidence on this front. There's plenty of evidence linking Saudi and the Yemen. All seem agreed that oil is major factor in US interests in Afghanistan and Iraq, but is is it free flowing oil lanes or control that the US wants?
Someone else (lovely person I'm sure) reckoned it was democracy that the US wanted to gift the Middle East. Hhmmm. Has Western democracy worked in countries that have found it imposed upon them?
To me, America's global activities are entirely consistent with those of a dominant world power seeking to maintain its position. If any other country were in their position they would do the same, whether we think this right or wrong. Apart from Scotland who would just export its heart disease and cancer rates to ensure global peace.