This is an example of well made conspiracy art. I'm not sure about the content. Who knows? It might be true.
Some people believe that a Boeing 757 did not actually fly into the Pentagon. So what did? And what happened to the missing plane? I just haven't heard any reasonable explanation as to why someone would go to all that trouble. Quite often the cover-up seems like it would have to be so incredibly complicated and onerous to pull off. That's not to say there was no such conspiracy, but until more evidence can be presented to compel me to accept an alternative explanation then Occam's Razor cuts off the debate for now.