Reminds me of this article, where spies abroad all suffer similar strange headaches, impacting their ability to focus. Perhaps your “hypothetical” bioweapon is

Reminds me of this article, where spies abroad all suffer similar strange headaches, impacting their ability to focus. Perhaps your “hypothetical” bioweapon is already being tested in the field. https://www.gpb.org/news/2020/10/27/cia-officer-visits-moscow-returns-mysterious-crippling-headaches https://www.gpb.org/news/2020/10/27/cia-officer-visits-mosco...