The pentagon has pivoted by claiming things like anthrax, "aren't offensive weapons". Those two articles you posted are just rehashing the pentagon press release,which you would have to be extremely ignorant or heavily propagandized to believe.
Could you point out where the Pentagon claims anthrax isn't a bioweapon? At least in that press release, the only reference to anthrax is weaponization (anthrax is minimally dangerous until in a weaponized form).
Ok, I should have been more specific: the way it is often framed (and the way I have seen it framed, and how the linked article frames it) is as if these were US-affiliated labs working on bioweapons. That is not what Nuland said. Biological research facilities do not have to be bioweapons labs, just as explosives research facilities need not be arms manufacturers.
Greenwald (the author of the linked article) of course does what Greenwald recently is hell-bent on doing, which is to try to scandalize anything he can. I used to respect the man, but that was a long while ago.