“It may be easy to get the major world powers (China, USA, Russia) to denounce the use of infectious biological weapons. But arms control treaties only work when weapons are big, visible and expensive. Infectious pathogens are tiny and invisible. Genetic engineering is getting cheaper fast.”

Reminds me of the recent mysterious Chinese seeds non-event. A simple mechanism for the delivery of a bioweapon, when so many are conditioned to open anonymous deliveries by e.g. Amazon. Made, ironically, more valid by habit formation during the SARS-COV-2 outbreak. Seems problematic.