Dr. John Hubisz, visiting faculty member in the physics department at N.C. State University, explains that middle-school science textbooks have improved in the years since he first issued a report decrying books full of errors. Hubisz delivered these remarks during a presentation to the John Locke Foundation’s Shaftesbury Society Nov. 16, 2009. To watch full-length presentations of John Locke Foundation events, click here.