Alex Jones interviews Steven Jones, a BYU physics professor, who has scientifically proven that a special mix of thermite and sulfur and ... all » some other chemicals, known as thermate, was used to cut the WTC steel backbones. Thermate is widely used by the military and demolition companies as the cutting charges.
http://video.google.com/videoplay?docid=-2842384983834100001&q=Alex+Jones&hl=en