 to try and make the U.S. think it can't contain China, that more nuclear weapons in China's hands will make Washington believe it can't keep China down. Whether that's correct understanding of D.C., well, that's another matter, I would say. Now, you spoke with Tong Zhao, a senior fellow with the Nuclear Policy Program and Carnegie China. He sees this not just as nuclear deterrent for China, but that Xi Jinping sees it differently.