Watch the Fox chopper clip that zooms its camera into the second tower just before the plane went in. Not only does the nose of the plane come out the other side, it then proceeds to disappear when it hits the terminator line of the special effects overlay.

To add to that, the pictures are lost for several frames before returning after the "plane's" impact had completed. These frames were removed because they fucked up and didn't centre the second tower in the middle of the screen. What viewers would have seen had they not been removed was the whole plane pass through the exploding tower intact, then completely disappearing at the overlay's terminator line.

Also if you watch that clip in reverse - so that the camera is zooming out instead of in, you will see that there is no plane on the flight path during the more distant shots.

This clip was for me the straw that broke the camel's back and converted me into a 9/11 truther. It is not important right now to know the whole truth, but to know the lies and trickery that day and who commited them.