The Daily

Last night, President Trump welcomed Xi Jinping, China’s top leader, in a lavish ceremony as he arrived for two days of closely watched negotiations.Artificial intelligence — and what, if any, role the countries should play in regulating it as concerns mount about its risks — is expected to be on the agenda.David E. Sanger, a White House correspondent for The New York Times, explains how nuclear nonproliferation could be a model for how to protect humanity from technological catastrophe.Guest: David E. Sanger, the White House and national security correspondent for The New York Times.Background reading: Mr. Trump greeted Mr. Xi for a state visit amid tensions.Video: Mr. Trump and Mr. Xi face the A.I. race.Analysis: As fears of A.I. catastrophe magnify, Washington stirs, but mostly slumbers.Photo: Haiyun Jiang/The New York Times For more information on today’s episode, visit nytimes.com/thedaily. Transcripts of each episode will be made available by the next workday. Subscribe today at nytimes.com/podcas