Tech supply chains are still a complete mess

Last week, we made the case that tech manufacturing was uniquely vulnerable to pandemic problems, from a combination of just-in-time manufacturing practices and a far-flung network of suppliers. But just a week later, the news is even worse. On Friday morning, analysts at S&P's Panjiva Research laid out a grim picture, with US sea imports from China (which includes most of the electronics you buy) down more than 50 percent in the first three weeks of March, a result of the countrywide lockdown i...