A February deal between Zillow and Redfin is at the center of a new lawsuit from the Federal Trade Commission, which accuses the two companies of violating federal antitrust laws. The arrangement is alleged to unfairly limit competition in the realm of rental advertising.

Meta, the social media giant behind Facebook and Instagram, begins its most significant legal battle today as it faces an antitrust trial in a Washington court. The U.S. government is challenging the company’s dominance in the industry, a move that could reshape the future of Big Tech.