Inside the latest move in Biden’s China tech war

A year ago, the Biden administration took a direct hit at China’s tech ambitions when it slapped trade restrictions on microchips and the equipment needed to make them. Just last week, U.S. officials tightened the screws further by expanding those restrictions -- what the government calls export controls -- to cover certain sophisticated chips that are necessary to develop artificial intelligence. On today's show, Steven Overly talks with Thea Rozman Kendler, the Commerce Department official behind the latest rules.