Well that's no fun
For the record, Im neutral. I have a friend who shows me "conspiracy" type movies almost all the time. I get rather sick of them quickly, but I must admit, I get hooked on a few of the ideas.
The plane crashing into the pentagon is a perfect example, IMO. If you watch the doc, and I can't remember the name of it for the life of me, it makes a LOT of interesting pionts. Even if you don't buy it, you have to ask yourself why those glaring holes in the story are there. Maybe it's coincidence, or maybe it's not. Who knows, but to me it's better that these questions are asked rather than not at all.