I don't get it either
Also, why would there be a C-130 in the Pentagon airspace in the first place? It is not as if they had to track a hijacked airplane, right TLB?
Well, their was a C-130 in the area at the time. I think that ATC asked him to follow AA77. But it was at a much higher altitude and probably a mile behind. Perhaps the Complete Idiot Team and their handful of followers are the exception, but absolutely nobody is dumb enough to see a plane pull up and over the Pentagon and then just write it off as the C-130 just because they heard some vague story about it on the news.