This week President Donald Trump signed an executive order that put a halt on a merger between two giants in the microchip-making business. Singapore-based Broadcom was attempting to buy California-based Qualcomm. The president cited national security concerns in his order to block the merger. At issue was Qualcomm’s role in developing next-generation wireless connectivity, or 5G. Marketplace Tech host Molly Wood spoke with Roger Cheng, executive editor at CNET, about why 5G is so important to U.S. interests.