Exposing Theranos

John discusses the lengths Theranos went to in order to suppress the truth about their technology, including hiring private investigators and sending threatening letters. He reflects on Rupert's surprising role as a steward of journalism, noting that despite his investment in Theranos, he did not interfere with the reporting. The risks of testifying are also highlighted, as it could open the door to revealing the full extent of Theranos's tactics against journalists.