"With billions in stimulus funding, Education Secretary Arne Duncan has more power to create change in the nation's schools than any of his predecessors. Before taking his current post, Duncan was CEO of the Chicago Public Schools. During his tenure there, reading and math scores set new records, and the number of high school students taking Advanced Placement courses more than tripled. Now he faces the challenge of prodding school districts around the country to improve student performance while local school budgets are tanking. U.S. News Senior Writer Kim Clark asked Duncan how leadership will help him reform American education in the midst of a recession. Listen to a podcast of this interview. Excerpts:"