Excellent video of white smoke from basement. I have not seen this before

I should add that if one could find photos of the moment of impact that included the area below, that is smokey in White's examples, and which show no smoke present, then there would be a point against his presentation.

Such photos would have to be photos of the impact on the South Tower, because the smoke White is referring to is just coming above the level of the lower buildings at that moment.