A third nuclear superpower

For decades, a delicate strategy of deterrence kept Russia and the US from nuclear war. With China upping its nuclear ambitions, things are about to get a lot more complicated.  This episode was produced by Amanda Lewellyn, edited by Matt Collette, fact-checked by Laura Bullard, engineered by Michael Raphael, and hosted by Noel King. Transcript at vox.com/todayexplained Support Today, Explained by making a financial contribution to Vox! bit.ly/givepodcasts Learn more about your ad choices. Visit podcastchoices.com/adchoices