"Bad Blood" author on the unraveling of Theranos' fraud Theranos founder Elizabeth Holmes told us in 2015 how she would transform blood tests by using a drop of blood from a finger-prick to get fast, low-cost test results for everything from cholesterol to cancer. But this past March, the Securities and Exchange Commission called Theranos "an elaborate, years-long fraud." Wall Street Journal reporter John Carreyrou broke the story of the Theranos deception. He joins Norah O'Donnell in the Toyota Green Room to discuss chronicling the company's collapse in his new book, "Bad Blood: Secrets and Lies in a Silicon Valley Startup."