What would the man who co-authored the Patriot Act have to say about our individual privacy? Former US Secretary of Homeland Security Michael Chertoff joins us to talk data rights, Russian operations, and his new book, “Exploding Data: Reclaiming Our Cyber Security in the Digital Age”. And UK Home Secretary Sajid Javid this week called on tech giants to stop sitting on their hands when it comes to protecting children from online sexual abuse. We speak with Dr Jeremy Malcolm of Prostasia Foundation to find out what Silicon Valley has to say about that. Join Dr Charles Kriel in London for Data, Ethics and Trust.