Federal judge Richard Posner lists what he sees as the greatest threats to the world:

If I were asked to list the greatest threats to the world, I would include global warming, but would add bioterrorism, nuclear terrorism, nuclear proliferation, biodiversity loss, cyberterrorism, nanotechnology, artificial intelligence/robotics, and asteroid collisions.

Pretty good list. Overall, I found his stint as Larry Lessig’s guest blogger to be informative and interesting. He’s often tarred as that libertarian University of Chicago guy, which is, of course, an accurate description. He’s not an ideologue, though, and I think he’d be a fine addition to the Supreme Court.