Mmm... fair point. I'd expect the nuclear bomb to do a better job of vapourising the plutonium than conventional explosives, but I don't know whether that would

Mmm... fair point. I'd expect the nuclear bomb to do a better job of vapourising the plutonium than conventional explosives, but I don't know whether that would actually do more damage. Maybe we're better off forgetting about a bomb completely. Grind it up fine, watch while it spontaneously catches fire (plutonium chemistry is weird!), dissolve the plutonium oxide in nitric acid, water down and then drive around the city spraying it into the air in a fine mist...