In 2012 Richard carried out analysis of 9/11 radar and video evidence of flight 175 as it appeared to impact on the world trade centres South Tower. Video and radar data shows that the object was travelling at around 580 miles per hour. Most pilots agree that 580 miles per hour is an impossible speed for a 767 travelling near sea level. Not only that, close up videos showing the alleged plane impacting on the side of the tower show completely impossible impact dynamics. So with two major impossibilities the question arises, what was actually used? By studying the video evidence closely it suggests that some kind of illusion was being generated to trick observers of the existence of a 767 aircraft. It is possible that a solid object was cloaked inside the illusion. John Lear explains just how impossible the speed was, which is a piece of glaring evidence that is not going to go away.