China, because no democracy would tolerate this level of risk. liquid sodium designs require elaborate safety controls to separate the coolant from air and wat

China, because no democracy would tolerate this level of risk. liquid sodium designs require elaborate safety controls to separate the coolant from air and water, to avoid catastrophic explosion. Kinda a problem when you're really just boiling water to create steam to turn a turbine to make electricity. As a result of numerous fires from leaking systems, operating sodium-cooled fast reactors to date have been shut down more than they have run. Maintenance is ...challenging.