NIST: no corroborating evidence for explosives or thermite

Observation

NIST published a negative finding on explosives and thermite as collapse causes.

Interpretation

Strong official contradict of H004/H006. Does not by itself make those hypotheses disappear from the board.

Source text

INTERPRETATION (NIST FAQ, Alternative Theories): NIST states it found no corroborating evidence of explosives, that blast waves would have broken windows at distances not observed, and that thermite as a column-cutting method is impractical at the required scale and would have been visible to responders.

This is a negative finding from the investigating agency. It is not a laboratory disproof of Harrit et al. (EVD-121), whose dust samples NIST did not replicate in public.

Independence is limited: NIST is answering challenges to its own report.

Hypothesis linkage

• H003supportsseeded

  NIST negative on explosives is the official complement of fire-and-impact.

• H004contradictsseeded

  NIST: no corroborating evidence of explosives/thermite.

• H005supportsseeded

  NIST negative on explosives for WTC 7 as well as the towers.

• H006contradictsseeded

  NIST no-explosives finding.