After the September 11 attacks on the World Trade Center and Pentagon, many people questioned why no one had anticipated the terrorists' acts, even when events and intelligence seemed to point toward them. John Barell wonders if the attacks speak to a greater societal problem of complacency. He believes many students have become too passive in their learning, accepting information and 'facts' as presented in textbooks, classes, and the media. Drawing on anecdotes from educators and his own life, Barell describes practical strategies to spur students' ability and willingness to pose and answer their own questions. Antarctica expeditions, outer space discoveries, dinosaur fossils,  ...