Thanks for writing this! It's good to know that there probably weren't recent close calls for governments using bioweapons on a large scale on purpose. The history linked in the last post mentions a few times when testing accidents might have hurt nearby people - do you think there were other close calls for testing accidents, including ones that might have affected many more people?
MIT EA has used modified discussion sheets from South Bay EA for several of our events, and they've saved us a lot of time when planning discussions.