It's a really strange decision to choose the security council as the forum, given its purpose.
I think the reasonable thing would have been to let some sort of committee of interested countries to have access to a bunch of relevant. It could still be public and in video form.
I like the call for ensuring that AI isn't concentrated in one company or country though. I would be happy if this were followed, with appropriate EU efforts to make good training accelerators etc. so that we could have our own reasonable 10T+ models.
I've poo-pooed the bio stuff earlier, but I think I agree with the threat to some degree, but I still absolutely hate the idea of central control of models, probably because it's still central control.