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The challenges of our age


Humans today live longer lives than ever before, but two of the biggest minds in science and technology, Peter Diamandis and Bob Hariri, are out to achieve an even more elusive goal, living longer healthy lives. The founders of new biotech firm Celularity discuss the challenges of our age with MSNBC’s Ali Velshi and Washington Post columnist Catherine Rampell on “Velshi & Ruhle.”