Theranos: An Innovation Darling's Fall From Grace? Listen Download Embed Share Share this on Facebook (Opens in a new window) Share this on Twitter (Opens in a new window) Share this via Email Elizabeth Holmes, Theranos CEO and the world's youngest self-made female billionaire, in an interview on September 29, 2015 ( David Orrell/CNBC/NBCU Photo Bank / Getty ) Produced by PRI and WNYC