The threat of bioterrorism is in no way enabled or increased by LLMs. There are hundreds of guides on how to make fully synthetic pathogens, freely available online, for the last 20 years. Information is not the constraint.

The way we've always curbed manufacture of drugs, bombs, and bioweapons is by restricting access to the source materials. The "LLMs will help people make bioweapons" argument is a complete lie used as justification by the government and big corps for seizing control of the models. https://pubmed.ncbi.nlm.nih.gov/12114528/