To summarize some important points of the interview, Steven Jones has done some independant scientific research on the collapse of the WTC buildings and is coming up with a different theory and probable conclusion than official theory. Which he notes that especially in the case of WTC 7, even the official report declares that fire has only a fluke chance of being the cause of collapse.
He has modeled the claimed events and tested the melting truss theory and has not been able to reproduce the events of 9/11.
He notes that the pancake theory, which is a real event, produces a pancaked stack, not a pile of dust and rubble with severed support collumns.
He has aquired actual steel, some of the very little preserved, and it is testing possitive for thermite, and thermate even. There already exists video evidence of thermite/thermate reactions occuring in the buildings, and further of diagonal cuts of structural steel as per standard procedure for demolitions.
One point I'll add for those who have wondered, and he points out, that there is a form of demolition that reduces exlosions and squibs, they are called incendiary and simply burn through steel. You will become very familiar with them here.
Here's yet another link to a google video I can't seem to imbed. Then we have your introduction to thermite and video evidence spoken about in the interview of probable thermite reaction in one of the towers itself.
Interview
http://video.google.com/videoplay?docid=-727882942906109173