Explosive Nanothermite found in WTC Dust

The stuff can be mixed together with paint and then applied to walls, beams, anything. Workers could paint a room with it and never even know it.

A jetliner crashed and exploded into Tower 1, another jetliner crashed and exploded into Tower 2. Nothing crashed into Building 7. What brought it down in the same manner as Towers 1 and 2?

9/11: Chemical Engineer Mark Basile Found Nanothermite in WTC Dust

• Cincinnati 9/11 Truth
  You Tube
  October 27, 2010

Yet another professional discusses his analysis of WTC dust, where he found evidence of nanothermite, a military grade explosive many scientists, physicists and engineers now believe may have been used to bring down the Twin Towers and WTC 7