Our interview this week is with Hon. Michael Chertoff, my former boss at Homeland Security and newly minted author of Exploding Data: Reclaiming Our Cyber Security in the Digital Age. The conversation – and the book – is wide ranging and shows how much his views on privacy, data, and government have evolved in the decade since he left government. He’s a little friendlier to European notions of data protection, a little more cautious about government authority to access data, and even a bit more open to the idea of letting the victims of cyberattacks leave their networks to find their attackers (under government supervision, that is). It’s a thoughtful, practical meditation on where the digital revolution is taking us and how we should try to steer it.