When fireworks light the sky at the Beijing Olympics opening ceremonies, Cai Guo-Quiang will be making art. This Chinese born artist who now calls New York home creates artwork from fireworks and gunpowder. He is currently designing the computer-controlled firework spectacle that will mark the start of the Beijing games. 

Recently, his work was on display at New York's Guggenheim Museum in an exhibit called I Want to Believe.  For producer Wang Yiru, Elaine Lu has the story.