I was looking up info on the clip there was suspicion that it was modified for 'In Plane Sight' but that may not have been the case. I just thought it looked odd.
Here's a snippet on the clip
http://www.oilempire.us/inplanesite.htmlThe film claims that a video clip in New York of the second crash is strong evidence that the second plane wasn't Flight 175. This clip has a background voice yelling "that was not an American Airlines," repeated twice. It has nice hysterics, and sounds real, if you ignore the lack of correlation to the video clip (there isn't anyone in pictured in the video saying this, the person saying this is not in the scene). It is just as probable that the screaming voice was added in the studio during the manufacture of this film. Furthermore, does anyone, even those who think that Bush ordered 9/11 to happen, really believe that bystanders in New York started shouting "that wasn't an American Airlines?" This is embarrassingly bad, beyond parody.
While "powerhour" has some video editing skills, taking other peoples' footage of 9/11 into their own production, it seems unlikely that their digital editing skills aren't yet to the point of being able to insert people into video clips who aren't part of the original footage, and they had to rely solely on dubbing in the sound, and then pretend that this was "testimony."