Well, yes technically he should first explain why he thinks construction workers would not clean up the place and leave behind tons of iron spheres and other crap from construction, and also explain why these iron spheres would remain intact as iron versus rusting into iron-oxide and eventually turning into dust given 30 odd years in a salty wet next to the ocean rust factory climate. And then he would still have nothing because he neglected to mention we already know that the red material in those redgray chips formed at least some of those spheres so there is no challenge to Harrit et al.
Mr. Greening also assumes that the concrete had fly ash spheres even though he knows that it did not according to NIST and that he also knows that Dr Jones checked samples and found none. As he neglects to mention the redgray chips that debunk his welding spheres theory he simply neglects to mention these little details that debunk his work. This would be called out as scientific misconduct if any scientist bothered to respond to this crap. It is funny though seeing people here swallowing this BS without demanding he first publish it in some big name reviewed journal, as they do whenever anyone challenges their mantra. Behold, Greening says there be fly ash spheres in the concrete. Amen.
This paper is full of holes so big you could drive a truck through them, laughing all the way. It is ironic that the people he once called fanatical defenders of the official story are the only ones blind enough to not see them holes! So funny.
Mr Greening does though finally admit on paper that the iron rich spheres were created in 1500C plus temps, as truthers have been saying for years. Also very nice confirmation of Harrit et al conclusion of formation of iron spheres when redgray chips ignite means they reach temps over 1500C. But he neglects to mention all this, as he neglects to mention all the other things. Funny to think that some clowns on various forums and YouTube have been claiming otherwise for years. Red faces.