With the proliferation of data and technology, new threats to national security are coming, Benjamin Wittes explains in a talk about his book, "The Future of Violence: Robots and Germs, Hackers and Drones – Confronting a New Age of Threat." A senior fellow in governance studies at the Brookings Institution, Wittes is co-founder of the Lawfare blog and member of the Hoover Institution’s Task Force on National Security and Law. (University of Virginia School of Law, Nov. 12, 2015)