(FILES) This file photo taken on October 21, 2015 shows Theranos chief executive Elizabeth Holmes speaking at a Wall Street Journal technology conference in Laguna Beach, California. US regulators have banned Holmes, founder and chief executive of Theranos, from operating laboratories for at least two years, the troubled blood-testing company said late July 7, 2016. Theranos said that the Centers for Medicare & Medicaid Services (CMS) had imposed sanctions on the company after finding problems at its Newark lab in northern California. / AFP PHOTO / GLENN CHAPMAN