Like it or not, the U.S. is already fighting an economic and technological cold war against China. While we should aim to eventually return to the optimism and promise of a broad China/U.S. partnership, the time for that is not now. This is a major challenge to our country, and we must do everything we can to avoid losing our economic leadership. By now, we all know the rivalry in 5G and AI, part of China’s $1.4 trillion technology commitment. Less attention has been given to an equally consequential struggle: who will control our future global financial systems. The power...