U.S. stock futures sink after China ratchets up trade threats - MarketWatch
1. U.S. stock futures dropped amid concerns over U.S.-China trade tensions. 2. China threatened retaliation against U.S. trade restrictions, raising market fears. 3. Dow futures showed a significant decline of about 380 points, or 1%. 4. The market experienced steady weekly losses, prompting investor anxiety. 5. Trump's tariffs may lead to higher inflation and reduced economic growth.