Theranos prepares to go public with its blood-testing devices. But the company faces increased scrutiny, as problems with its technology—and its leadership—add up.Need more American Scandal? With Wondery+, enjoy exclusive seasons, binge new seasons first, and listen completely ad-free. Start your free trial in the Wondery App, Apple Podcasts, Spotify or visit wondery.app.link/IM5aogASNNb now.  See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.