Wilt Alston has written one of the best
debunkings of the official story of 9/11 that I've seen anywhere. He hasn't gone into the pesky details of how, if you believe the official story, you have to believe that the laws of physics were suspended for long enough for the WTC buildings to "collapse" - he's just pointed out the glaring errors in the story so you can do your own thinking.
Of course, doing your own thinking is something most people seem allergic to.