Professor Stephen Jones, along with others now, find the...

Professor Stephen Jones, along with others now, find the explosive thermite throughout 9/11 debris. Ineteresting what FEMA reported some years before Jones did his research. Details given as follows,

http://www.911research.com/wtc/analysis/theories/thermite.html

Findings reported in Appendix C of FEMA's World Trade Center Building Performance Study seem to fit the thermite theory remarkably well,

"Evidence of a severe high temperature corrosion attack on the steel, including oxidation and sulfidation with subsequent intergranular melting, was readily visible in the near-surface microstructure. A liquid eutectic mixture containing primarily iron, oxygen, and sulfur formed during this hot corrosion attack on the steel.
...
The severe corrosion and subsequent erosion of Samples 1 and 2 are a very unusual event. No clear explanation for the source of the sulfur has been identified".