This video by David Hooper is the best document I have seen about the events that resulted in the destruction of the World Trade Center in New York on 9-11-2001.
Methodically raising the obvious questions, presenting numerous testimonies, and examining plausible explanations, this video will keep you riveted as much as the best mystery thrillers, and probably lead you, as it did me, to consider the unthinkable about what really happened on that fateful day.