Dr Steven E. Jones is most known for his theory relating to how the WTC Twin Towers collapsed on 911. He maintains that the towers could not have fallen in the freefall manner which the official story portrays. Instead he believes that they were brought down by controlled demolition, and he has pin-pointed the explosive which must have used, Thermite. It can cut through steel beams, like a hot knife through butter, and it leaves a tell tale sign of pools of molten lava, which existed at ground zero atleast up until December 2001. This is one of his many presentations on the subject, and includes all his main scientific theories about the events of September the 11th 2001, theories which have forced this down to earth and extremely knowledgeable chap to retire.