Having recently read both of Annie Jacobsen’s books — _Nuclear War_ and _Biological War_ — I’m much more concerned about a bioweapon than a nuclear one.

Her conclusion to the latter book comes out and says it, paraphrasing here:

> Nuclear war is terrifying in its destruction, but the chain of command limits the risk of a rogue actor. Whereas bio weapons can be designed and manufactured in relatively low tech environments with equal or greater magnitudes of impact.