Japan is now trying to figure out how to deal with one of the most rapidly aging societies in the world. While health care and social security are major concerns, some experts also see business opportunity. Yumiko Murakami, head of the OECD Tokyo Centre and regular commentator on our show, says that there is untapped business potential in Japan's growing elderly population. In this episode, we visit 2 companies that are already putting that theory to the test - a metal processing company which has lowered labor costs by hiring older employees and a business started by aging tech whizzes that makes high-performance speakers designed for the hearing impaired.