People who think thermite was used to demolish Tower 7 have also claimed that the one section of steel from the building that was kept reveals that it was melted by some strange substance.
Sonically, this treatment of America comes across via a grouping of pedal steel guitars (instead of the usual string section), banging titanium and steel sculptures, and organizing "a who's who of drummers" in a 12-member drum circle, including Jason Bonham, Sheila E. and Pharrell Williams.