Mariette DiChristina is the Editor in Chief and senior vice president of Scientific American "the first woman to hold the role in the magazine's 170-year history. She has been a Fellow of the American Association for the Advancement of Science since 2011 and served as president of the National Association of Science Writers in 2009 and 2010. She joins us here today to share her perspective on the Google Science Fair, which is in its fifth edition this year. -Ed....