How do we invest in the future of humanity? Swedish philosopher Nick Bostrom explains

Economics correspondent Paul Solman and Swedish philosopher Nick Bostrom discuss existential threats such as nuclear winter and how the biggest threat to humanity may be what we don't yet know. Editor's note: Economics correspondent Paul Solman recently traveled to Oxford University's Future of Humanity Institute. And yes, there is an institute that studies only that -- the future of the human species. In PBS NewsHour's Thursday Making Sen$e report, Paul speaks with the institute's founding director Nick Bostrom, a Swedish philosopher known for his work on artificial intelligence and existential threats. You can watch Bostrom's TED talk on "superintelligence" -- what happens when computers become smarter than humans -- here.