The European Union is pushing to regulate big, global technology firms. In their latest move, EU negotiators agreed to a broad set of legislation called the Digital Services Act, which aims to, among a long list of other items, require social media companies to make their algorithms more transparent and limit the spread of disinformation on their platforms. While the language in the DSA still needs to be finalized, it seems clear that platforms like Twitter — regardless of who owns it — will need to adapt to those rules. Eric Heinze is a professor of law and humanities at Queen Mary University of London. He spoke with Marketplace’s Kimberly Adams about how strict these EU rules will be and what they mean for Elon Musk’s vision for Twitter.