11/20/12 - Tuesday's Topical Currents is with education innovator Salman Kahn. He says today’s schools and colleges are built upon a model developed by Prussians in the 1700-hundreds . . . and that modern technology should make classrooms more human and teachers more important. He recommends a pay scale for teachers to match other professions. Salman Kahn has written, THE ONE WORLD SCHOOLHOUSE: Education Reimagined.