⁣Elizabeth Holmes promised the world a medical revolution. At 19, she claimed to have invented a miniaturised machine that with a single drop of blood could map a person’s health quickly, reliably and cheaply. She boasted that her technology meant serious diseases like cancer would be prevented before they happened. And it was not only a “wow” moment for patients. High-profile investors rushed to pour a fortune into Holmes’ company, Theranos, and she became Silicon Valley’s first self-made female billionaire. But as Tara Brown reports, her invention was an invention – it simply didn’t work. Elizabeth Holmes is no visionary. She’s a cruel fraudster who has put people’s lives at risk, and because of that, now faces 20 years in jail.