The CIA is focusing on Xi and, in particular, his intentions regarding Taiwan. The FBI’s counterintelligence task forces across the nation have intensified their hunt for Chinese efforts to recruit spies inside the US, where agents have identified a dozen penetrations by Chinese citizens of military bases on American soil in the past year. Both countries are racing to develop their artificial intelligence technology, which they believe is critical to maintaining a military and economic edge and will give their spy agencies new capabilities. The spy conflict with China is even more expansive than the one that played out between...