Hmmm right around the time gain of function was outsourced to Wuhan.
https://www.hsdl.org/?abstract&did=837679
It's WMD research that is completely focused on Biological research. Here's some interesting pages from initial publishing.also of note is this was published on the national nanotechnology initiative website.
DOD Reseach into Biological WMDs bun
(Good find anon, Notable imo)