c'mon jim, you can't be surprised at hearing this theory. You must have heard all of the various bush let it happen, pnac needed a new pearl harbour excuse to go to war theories there are out there. Tho admittedly, the idea that the soul purpose would be to push thru the patriot act is kinda odd when there are so many other good motives to assign to it...
just in case here's a sample of what's out there:
ask why gw had anti-aircraft artillery in place on the roof of his hotel in florida the morning of sept 11th. Is artillery installation normal for presidential visits? Not sure on that
why did he continue to sit in the classroom for 20 minutes after andy card told him about the second plane, including the words 'we're under attack'?
ask why ashcroft stopped flying commercial airlines:
http://www.cbsnews.com/stories/2001/07/26/national/main303601.shtml
ask why fighter jets weren't scrambled faster and from more appropriate bases:
http://www.sianews.com/modules.php?name=News&file=article&sid=1022&mode=&order=0&thold=0
ask who was pushing profitable financial transactions thru just as the planes struck:
http://www.wanttoknow.info/011218reuters
Who are the Investors and individual stockbrokers that placed abnormally high bets just before 911 on American Airlines and United Airlines Stock to take a sudden fall in value?
ask what is in those hidden 28 pages from the congressional report on saudi arabia's in role in 9/11
http://www.alternet.org/print.html?StoryID=16513
ask why the administration said the use of airliners to crash into buildings was a surprise that had never been discussed before when the olympics have had security precautions in place for such an attack since 1973, indeed even the cia and the fbi both were aware that alqueda specifically was interested in that very scenario as of at least 1998:
http://www.wanttoknow.info/020919nytimes
overview:
http://www.911timeline.net/
the last link there is a good timeline, but filled with conspiracy crap so weed it out if ya can. Like all things internet, the conspiracy theories are probably 70% crap, 20% things the powers that be can't answer due to national security but that last 10% of unanswered questions are kinda interesting...