The Wall Street Journal Nvidia’s Trump Worries Go Far Beyond China — ‘AI-diffusion’ rules could limit U.S. chip company’s sales even to friendly countries—and give more opportunity to foreign rivals. Retail Giants Manage to Keep a Lid on Prices but Warn It Can’t Last — Prices have largely held steady overall, aside from modest April increases in some categories, a WSJ analysis finds. AstraZeneca Sales, Earnings Rise; Warns of Mounting Legal Challenges in China — Its o