SEOUL, November 08 (AJP) - Nvidia executive Madison Huang has called off a planned visit to Seoul. The cancellation comes as her father, Nvidia chief executive Jensen Huang, faces questions from U.S. lawmakers over his ties to a businesswoman suspected of spying for China. Huang, senior director of product marketing for Nvidia's Omniverse and robotics platforms, had been scheduled to arrive Sunday. She was due to attend Nvidia AI Day Seoul 2026 at COEX on Monday and Tuesday an