The US Supreme Court began hearing arguments in a case called Gonzalez v. Google. This case could have global implications, since it questions whether tech companies can be held legally responsible for content promoted by their algorithms. If the Supreme Court weakens the law that protects companies from liability for content produced by others, platforms may need to revise or eliminate recommendation algorithms that govern their feeds. And if the Court scraps the law entirely, tech companies could face lawsuits based on user content.