> Biological weapons are more restricted by the fact that they're impossible to control, and so using an effective one is a suicide mission. It isn't a suicide

> Biological weapons are more restricted by the fact that they're impossible to control, and so using an effective one is a suicide mission. It isn't a suicide mission if your side is immune to it. For example, biological warfare against the natives were instrumental in the conquest of the americas. Not only did it quickly thin down and weaken the native population, it also left the infrastructure intact.