Semiconductors are used in just about every piece of technology. The US wants to limit what China can do with them. Alex W. Palmer explains the latest front in the fight for tech dominance. This episode was produced by Jon Ehrens, edited by Amina Al-Sadi, 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