Artful Dodger: I agree with you. That event alone poses unanswered questions, but does not make a case. A proper case is based on cumulative evidence, of many kinds, which must take into account other events of 9/11, events leading up to it, and events following it. It also must explain motive, means & opportunity for the crime alleged. It is this cumulative evidence, so vast if one really looks into it, that convinces me and many others that the official story can't be true, and that the alternative theory must be.