The White House has revealed President Biden and Chinese President Xi Jinping have agreed for the two nations to begin holding nuclear arms talks. For decades the U.S. has maintained a vastly larger nuclear arsenal, but China has been investing in new nuclear arms technology. Earlier this year, China tested a nuclear-capable hypersonic missile. Satellite imagery suggests China is also building more than 100 new intercontinental missile silos. Meanwhile, the United States is planning to spend over a trillion dollars in coming decades to modernize its nuclear arsenal.