Summary:
- Elon Musk announced a $1 million giveaway to Twitter users, but the U.S. Justice Department is investigating the legality of the promotion.
- The giveaway is part of Musk's efforts to boost Twitter's user engagement and growth after his $44 billion acquisition of the platform.
- The Justice Department is examining whether the giveaway violates any laws or regulations, particularly around the use of social media platforms for promotional activities.