"I call for a serious investigation of the hypothesis that WTC 7 and the Twin Towers were brought down, not just by damage and fires, but through the use of pre-positioned explosives... I present evidence for the explosive-demolition hypothesis, which is suggested by the available data... and yet has not been analyzed in any of the reports funded by the US government."

Note that the author is a Physics professor from Brigham Young University.

See: Steven Jones paper (2005-11)