One of the participants at this week's Nobel symposium on climate change was Yuan Tseh Lee. He's a native of Taiwan who won the Nobel Prize for Chemistry in 1986. Anchor Lisa Mullins speaks with him about the meeting that just ended in London.
Chinese Communist leader Mao Zedong and his arch-rival for control of China, Chiang Kai-shek had a complex relationship. Now two of their grandchildren have met for the first time. Marco Werman has more.