According to Paul Joseph Watson in this article, NIST, or some other government entity, edited footage of WTC building 7. I'm not convinced of most of the claims, but the video which is in question is clearly edited. One frame, the penthouse on WTC-7 is there, on the next frame it's gone. The smoke and onlookers are also in different positions, and there is a clear jump in the audio.
The video was uploaded by the International Center for 9/11 Studies. They claim on their website they got it from NIST via FOIA request.
Did the government edit this video, and if so, why?