The next generation of cellular network technology is about to hit markets around the world. But there's a big problem: The main producer of the technology is Huawei, and the company allegedly has built backdoors into more than 50% of the equipment. That raises serious national security issues for every country on the planet. Raul Rikk, Estonia's national cyber security policy director, William Evanina, director of the U.S. National Counterintelligence and Cyber Security Center, and Joel Brenner, former U.S. national counterintelligence executive explain the problem and address the solutions.