Meta: The potential proliferation of biological weapons is serious. Millions could die. It's easy to joke about before it happens, but try to imagine how this thread might look after the successful deployment of a biological weapon by a rogue state or non-state actor. I encourage you to take this topic seriously and contribute posts that add new information or perspectives to the discussion. (I myself think the odds…
I don't think knowing how to build a bio weapon means one could actually build a bio weapon. It's like saying knowing how to build a nuclear weapon can easily lead to building a nuclear weapon. Advanced machinery and safety precaution is needed to engineer a virus or a bacteria to be a bio weapon. It's not something you can do in your tool shed at the moment. Also one would need lethal viruses to even start with and…
This is laughably misinformed. You can in fact build a bio weapon in a glorified shed if you know what you're doing. However it will be quite involved, requiring experience on the bench and a great deal of attention to small details. In short an LLM can't suddenly morph you into a molecular biology lab tech with 5+ years of experience.
Meanwhile as with any STEM discipline the educational process effectively serves as a screen for being a reasonably well adjusted adult.
> Further, even to build a chemical weapon, the compounds needed are strictly controlled almost in every country
You can synthesize from basic precursors but you will hit the same issue as above. You will need actual experience on the bench and the process of getting that is going to screen out the vast majority of would be bad actors. (Notably it failed to screen out the members of Aum Shinrikyo but that is very much the exception.)