Russia's Nuclear Drills Come During a Viable War With Ukraine

Russian nuclear drills are an annual event. But this year they come during a vicious war with Ukraine and anxiety that Moscow could use a nuclear bomb in anger. Vladimir Putin watched the exercises by video link. He's openly threatened to use nuclear weapons. And today he repeated Russia's accusation that Ukraine could be planning to detonate a radioactive device, a so-called dirty bomb. The US calls the allegation transparently false.