Mariners know that the ocean will be harsh, unpredictable and generally damaging. After weathering a pandemic and assaults by Houthi rebels that every one however closed the very important commerce route by way of the Suez canal, container-shipping corporations could have hoped for some calm earlier than the following storm. Alas, Donald Trump’s ever-changing tariffs and his plans to impose exorbitant port charges on Chinese language vessels have led to extra uneven waters.