David Bodanis, author of Electric Universe : The Shocking True Story of Electricity. Also, World Health Org warns that there is grave danger of a worldwide pandemic if the Avian Flue continues to mutate; Canada wants no part of Star Wars; Scientists find rocket fuel in milk, including breast milk; Scientists found they can revive germs that have been frozen for 32,000 years; When should doctors determine the sex of a child? Scientists say new guidelines needed.