That's a valid reason (specifically, 1.4(g) listed at https://www.archives.gov/declassification/iscap/redaction-codes.html https://www.archives.gov/declassifica

That's a valid reason (specifically, 1.4(g) listed at https://www.archives.gov/declassification/iscap/redaction-codes.html https://www.archives.gov/declassification/iscap/redaction-co...). And while the NIST returning such a response is possible, it goes against the commitment to transparency. But still, that requires a response, and there hasn't been one.