War in Ukraine

As if they don't have enough to worry about, Ukrainians, fearing that Vladimir Putin will use some sort of nuclear weapon in the almost two-month war, are rushing to buy potassium iodide pills to protect them against radiation poisoning.

I’ve got to start by saying that I don’t know – there simply isn’t enough information available right now to answer that question. But I am dubious – here’s why.

Here’s what I’ve been able to find out to date. How are they measuring radiation around Chernobyl?