Thanks for the link. Wow. However the remarks were just "metaphorical" apparently. Uhm!
Any talk of some sort of limited use of nuclear weapons (e.g. by Putin) is insane IMO. Apart from the risk of immediate escalation, do the would-be perpetrators assume their own territory/citizens would somehow be immune from the effects of radiation and fall-out? I well remember the Chernobyl accident and the subsequent radioactive sheep many, many miles away in north Wales!