If they left the video alone, the public would accuse them of being lax and incompetent for not recovering such possible evidence. If they REMOVE the video, then its a government coverup....

My opinion as to why we haven't seen more video of the pentagon being hit is that there is none. What do you want them to do, release a tape showing nothing? Maybe as it turns out, there is nothing to show. They could release a animation or artists rendering, which I think I did see.