Part 11/12:
He emphasizes that the materials are well-understood, ubiquitous, and typical of building maintenance practices, thus removing any basis for claims of engineered demolition.
Final Thoughts
This presentation by Bob Griner marks a significant effort to clarify and correct misconceptions surrounding the 9/11 debris analysis. By combining thorough microscopy, material science, and historical context, he systematically demolishes the nano-thermite conjecture, reaffirming belief that the collapse was a structural failure, not controlled demolition involving advanced energetic compounds.