Assuming uranium production now is considered essential to national security (it wasn’t under Obama with Hillary’s Uranium One deal), steel and aluminum have been added to the list by president Trump, and the other nations can declare whatever they consider integral to their national defense, the rest of the industries ideally which would be tariff free, after all, the freest and fairest trade is no tariffs (on non defense-necessary industries); imagine how the volume of global trade would sky-rocket.
