Did China conduct secret nuclear tests? The United States thinks so. Host Mary Louise Kelly speaks with NPR Pentagon correspondent Tom Bowman and NPR China correspondent Jennifer Pak about China's nuclear arsenal and U.S. claims of an illicit Chinese nuclear test conducted in 2020. They also check in on other national security topics swirling this week: Board of Peace inaugural meeting, Iran and Ukraine.Email the show at [email protected]+ supporters hear every episode without sponsor messages and unlock access to our complete archive. Sign up at plus.npr.org.To manage podcast ad preferences, review the links below:See pcm.adswizz.com for information about our collection and use of personal data for sponsorship and to manage your podcast sponsorship preferences.Learn more about sponsor message choices: podcastchoices.com/adchoicesNPR Privacy Policy