Is Pentagon still a crime scene?

If it's not a crime scene anymore, then why won't the government show us the "plane" flying into it on 9/11/01. There were multiple cameras surrounding the scene that captured videos of this event, yet all we were shown were 4 crappy quality stills that were out of sequence and really didn't show a plane at all. I just want to see those two 9' engines getting "vaporized" as the government says that is what happened.