Among the many features that had Apple fans cheering at the company’s Worldwide Developers Conference was the announcement that dark mode is coming to its mobile devices. But the federal government beat Apple and the other tech giants to the punch with its own version of tech dark mode; news that left the entire Nasdaq in the red. CNBC on the latest moves: Nasdaq drops, enters correction territory as regulation fears batter Alphabet, Facebook and Apple. “Alphabet shares pulled back 6.9% after reports said the Justice Department is preparing to launch an antitrust probe on Google. Meanwhile, Facebook dropped 8.4% after The Wall Street Journal reported the Federal Trade Commission would be able to look into Facebook’s practices and how they impact digital competition. Amazon shares fell 4.8% after The Washington Post said an arrangement between the Federal Trade Commission and the Justice Department put the e-commerce giant under the FTC’s microscope. Apple also slipped 1.2% after Reuters reported the Justice Department received jurisdiction to investigate the company’s practices.” (I never really understood the desire for dark mode in the first place. Aside from cat videos, the whole internet era has been dark mode.)

+ Bloomberg: Google, Facebook and Apple Fall on Antitrust Scrutiny.