Jason Douglas and Tom Fairless at WSJ:
Barriers to open trade are rising across the world at a pace unseen in decades, a cascade of protectionism that harks back to the isolationist fervor that swept the globe in the 1930s and worsened the Great Depression. It isn’t just President Trump’s extensive new tariffs, which have set off a barrage of retaliatory measures across Europe, China and Canada targeting hundreds of U.S. goods. Even before Trump retook the White House, many countries were increasing trade barriers, often against China, as they tried to beat back a flood of electric cars, steel and other manufactured goods pressuring their homegrown industries. Now those efforts are proliferating as countries brace for a new wave of goods redirected across the globe by the U.S.’s rising tariff shield. The European Union said this month it plans to toughen measures to protect its steel and aluminum producers from imports diverted from the U.S. by Trump’s 25% tariffs on those two metals.