Lord Martin Rees on New Technological Threats

By Benjamin Wittes
Thursday, April 18, 2013, 12:00 PM

In this short video, Lord Martin Rees---the British astrophysicist and cosmologist--gives a brief and elegant statement of the problem Gabriella Blum and I have been writing a book about: the dissemination of radically-empowering technologies to small groups and individuals. Highly recommended---particularly if you want to spend the day scared:

Hat tip: Hugo Rosemont.