Could Ukraine Crisis Lead to Nuclear War?

There are fears that Russia’s invasion of Ukraine could trigger a larger nuclear showdown with western nations. Pope Francis even spoke about the threat of nuclear catastrophe at a ceremony in the Vatican. As a result, there’s now a huge demand for potassium iodide pills, which may offer some protection from radiation exposure. The CDC issued a public warning that “People should take potassium iodide only on the advice of public health or emergency management officials.”