Japan may be one of the safest countries in the world, but even here, security is a multi-billion-dollar industry. In this episode of Biz Buzz Japan, we explore some of the nation's latest security advancements, including roving robots, AI-equipped surveillance cameras, and even personal security devices that keep users safe while looking stylish too. This time, a look into the evolving technologies that will keep Japan secure during the 2020 Olympics and Paralympics and beyond.