Some kind of Photoshopped fuzz blob thing - done to hide the missile debris being shot from the building. You can see the obvious messing around of the pixels. <br /><br />From: http ://thewebfairy(dot)com/911/missileout/index(dot)htm <br /><br />View the real thing here: <br /><a class="link" rel="nofollow" href="http://www.dailymotion.com/chipmuck/video/x3quyw_plane-in-missile-out_tech">http://www.dailymotion.com/chipmuck/video/x3quyw_plane-in-missile-out_tech</a>
