http://www.kqed.org/.stream/anon/radio/quest/2008/01/2008-01-11-quest.mp3
It's one of the most expensive high-tech projects the United States has ever attempted, and some say it will never work. QUEST visits the National Ignition Facility in Livermore, where scientists will soon aim the world's largest laser at a target the size of a pencil eraser. The goal? Nuclear fusion -- and, they say, the answer to the world's clean energy needs.