Commentary California and the United States in general should be leading in developing Generation IV nuclear power reactors. Instead, it’s China. Headlined Power Magazine earlier this month, “China Starts Up First Fourth-Generation Nuclear Reactor.” The story: “The first of two units at China’s much-watched high-temperature gas-cooled modular pebble bed (HTR-PM) demonstration project was successfully connected to the grid on Dec. 20. The achievement marks a major milestone for fourth-generation advanced nuclear technology.” This is crucial because Gen IV is the future not just of nuclear power, but electricity generation. Gen IV is a major development over previous generations because it also makes power from its own nuclear waste, and meltdowns are impossible because an accident leads to the reactor shutting down, instead of going critical. Thus, it would prevent accidents such as Three Mile Island in 1979, Chernobyl in 1986, and Fukushima in 2011. Not just Republicans, but President Biden …