nalysis of Social Media, a collaboration between the University of Sussex and the think tank Demos, and is the author of The Dark Net: Inside the Digital Underworld. He presented the recent BBC series 'Secrets of Silicon Valley'. Sadie Creese Professor of Cyber Security at the University of Oxford, where she

Analysis of Social Media, a collaboration between the University of Sussex and the think tank Demos. He is the author of The Dark Net: Inside the Digital Underworld and Radicals: Outsiders Changing the World, and recently presented the BBC series 'Secrets of Silicon Valley'. Jeh Johnson Secretary of Homeland