If you're an iPhone owner, check out the spot where you plug in your charging cable. That port only accepts an Apple-designed Lightning connector. But there's a chance that that could change someday, if the European Union has anything to say about it. The European Commission is proposing that all devices sold in the EU come with a USB-C charger. This measure, designed to fight electronic waste and make life easier for consumers, will likely affect Apple, which still uses its proprietary Lightning charging cable, the most. "My guess is that they're going to be able to successfully implement this," says Aaron Perzanowski, a law professor at Case Western Reserve University, "despite the fact there's certainly going to be a lot of pushback from electronics companies." Here's what you need to know about these design mandates, and how Apple might respond. What is the proposal? In 2019, 53.6 million tons...