Exposives, at least, must have been used to bring down 3 towers of WTC the way they did collapsed/midair pulverize.
It would have taken weeks to preset explosive charges, therefore, the attacks are special insider false flag operation, pretext for wars and security regime in the USA.
Nanothermic residues were found in the dust of WTC.
Please sign 3 time limited White House 911 new Investigation petitions. # weeks to go to gather 5 000 signatures.