Tom's never been a big conspiracy guy. I don't think he sees it as too dangerous to go near. More likely, he just hasn't heard any credible alternative explanation. That's sort of where I am too.

The official story literally doesn't make sense, because it doesn't account for the building that fell down without being struck.

My view on most of the conspiracy theories I've heard is just that they don't have very good supporting evidence. I certainly think the US Government is sinister enough to have done any of them, but I still haven't seen a convincing account of what happened.