It's YOU who keeps suggesting core ... LOL.
Show me the evidence and I'm willing to believe.
Anyway, along this topic, here is a series of 3 Youtubes, featuring a "debate" between Leslie Robertson and Steven Jones.
Robertson was the chief engineer on the WTC towers and Steven Jones is the physics professor who first brought out the thermite theory.
It's most interesting that Robertson fully endorses the official version but admits, he hasn't done any studies on the speed of collapse and/nor on the dynamics of the WTC-7 building collapse. He seems peculiarly guarded in everything he says. He appears to be unfamiliar with any explosives theory but near the end of the interview he gives himself away by using the word "thermite" -something Jones hadn't mentioned at all, up to that point.
Robertson also reveals a restrained anger over Jone's perpetual probing, suggesting that it's time to quit talking about it and put the thing to rest because of the insensitivity to victim relatives' feelings.
What I find particularly intriguing is that Robertson uses the SAME arguments I did ... as a disbeliever in the controlled demolition theory. (I'd never heard this show before). He argues that the logistical problems with planting explosives would have been virtually unthinkable. So did I and I still haven't got a decent logical answer for that. But previously, I too, thought of Jones as some kind of dingbat, fruitcake Mormon; the fellow who endorsed the silly "cold-fusion" experiments back in the last century ... and goes looking for evidence of Mormon civilization in S. America. I find him hard to stand ... with his effeminate little laughs and his proclivity to tell folksy stories instead of dealing with cold hard facts. Well/but ... Jones has come a LONG way, I think ... from those first daze of his thermite stuff!~