Nuclear weapons

In this episode, Scientific American's David Biello discusses his article on nuclear weaponry in the November issue of the magazine. And Scientific American Mind's Karen Schrock talks about some of the highlights of the Neuroscience 2007 conference that she attended last week in San Diego. Plus we'll test your knowledge of some recent science in the news. Websites mentioned on this podcast include: www.sciam.com/sciammind; www.sfn.org

U.S. nuke list mushroomed in 2003 from traditional Cold War adversaries to smaller nations with nuclear ambitions